Numberphile

The Ultimate Math Meme - Numberphile

Numberphile — Sun, 18 Oct 2026 11:00:24 +0000

Matt Parker creates the ultimate mathematical meme?! Extra footage here: https://www.patreon.com/numberphile/posts/172247305 More links & stuff in full description below ↓↓↓ Matt's own YouTube channel is Stand-up Maths:…

No More Heroes - Terence Tao Talks to Numberphile About AI

Numberphile — Thu, 15 Oct 2026 13:58:59 +0000

A leading light in mathematics for much of his life, Terence Tao discusses the crisis being caused by a massive dump of AI proofs. More links & stuff in full description below ↓↓↓ Our playlist of videos on the current AI issue -…

The End of Mathematical Mountain Climbing - Numberphile

Numberphile — Wed, 14 Oct 2026 14:58:55 +0000

Fields medalist Hugo Duminil-Copin is grappling with how AI will change mathematics. The full 33-minute interview is at https://youtu.be/omuJpoV-Ko4 (or search Numberphile on your podcast player) More links & stuff in full description…

Big News in Polyhedra - Numberphile

Numberphile — Fri, 2 Oct 2026 10:41:06 +0000

Huge progress in the world of "Noble Polyhedra" is described by Richard Elwes. Full bonus interview with Connor Hill is on Numberphile2: https://youtu.be/x6F9GOTbjLg
More links & stuff in full description below ↓↓↓

Special thanks to Connor Hill and Robert Webb.

Connor's paper: https://arxiv.org/abs/2607.28711

Robert's website (and links to his Stella software): https://www.software3d.com/

Thanks also to Ulrich Mikloweit who wished to point out the work of Jim McNeill at https://www.orchidpalms.com/polyhedra/noble/noble.html

More Richard Elwes on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWI42WXh1jnv51jHrcjatrk8

More about Richard Elwes (who is based at the University of Leeds): https://richardelwes.co.uk/

Richard's latest book Huge Numbers
Amazon (affiliate links)...
UK: https://amzn.to/4bSZA8v
US: https://amzn.to/4v3CIMp

Some other Numberphile videos in this area:
The Holey Monster - https://youtu.be/BhSlqIe1CRQ
Perfect Shapes in Higher Dimensions - https://youtu.be/2s4TqVAbfz4

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Buckmaster Interview (Navier-Stokes) - Numberphile

Numberphile — Tue, 29 Sep 2026 20:05:39 +0000

Tristan Buckmaster speaks about his role in the controversial Navier-Stokes solution. We are seeking an interview with OpenAI too. More links & important information in full description below ↓↓↓

Note: Since the video was finalised and uploaded, we have heard back from OpenAI and we're trying to schedule an interview. If we're successful, it will be uploaded ASAP and linked here.

Here's OpenAI's page about the proof (which also includes statements about Buckmaster's concerns): https://openai.com/index/navier-stokes-solution/

Tristan Buckmaster page: https://cims.nyu.edu/~tristanb/

Buckmaster statement following publication of the proof: https://cims.nyu.edu/~tristanb/statement.pdf

A post from Sebastien Bubeck in response to some of the claims: https://archive.ph/T6tlF

Numberphile's initial video about OpenAI cracking Navier-Stokes: https://www.youtube.com/watch?v=3geDF-DAwpg

And an earlier Numberphile video about Navier-Stokes: https://www.youtube.com/watch?v=ERBVFcutl3M

Numberphile interview with Grant Sanderson about AI following the flurry of publicity: https://www.youtube.com/watch?v=CBYhaKgah5U

The letter of concern signed by Fields Medallists: https://mathandai.org

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

What now for Mathematics (with 3Blue1Brown) - Numberphile

Numberphile — Mon, 28 Sep 2026 15:42:59 +0000

These are a few highlight clips from a longer interview about AI with Grant Sanderson, creator of 3Blue1Brown. Full video is at: https://youtu.be/CBYhaKgah5U

(or search Numberphile on your podcast player!)

3Blue1Brown on YouTube - https://www.youtube.com/c/3blue1brown

Grant’s guest post on Terry Tao’s blog - https://terrytao.wordpress.com/2026/09/18/if-math-is-more-than-proof-we-need-to-better-celebrate-the-rest-of-it/

A possible Navier Stokes breakthrough - https://www.youtube.com/watch?v=3geDF-DAwpg

Grant Sanderson on Numberphile - https://www.youtube.com/playlist?list=PLt5AfwLFPxWKskQnjSsp3t8Uw2XMz5xYj

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Brady's latest videos across all channels: http://www.bradyharanblog.com/

SOLVED: Navier-Stokes cracked by AI - Numberphile

Numberphile — Fri, 18 Sep 2026 15:33:48 +0000

Tony Padilla on how AI cracked Navier-Stokes - with a bit of controversy of course. Extra footage at https://youtu.be/aom4269UgSM
More links & stuff in full description below ↓↓↓

More Tony Padilla videos - https://www.youtube.com/playlist?list=PLt5AfwLFPxWL8KAJKO3WfHhJcWrJfjgfU

Tony is a professor at the University of Nottingham

Our previous Navier-Stokes and Reynolds Number videos with Tom Crawford:
https://youtu.be/ERBVFcutl3M
https://youtu.be/wtIhVwPruwY

OpenAI on its solution to the Navier-Stokes Problem: https://openai.com/index/navier-stokes-solution/

OpenAI paper: https://cdn.openai.com/pdf/32d9f210-8b73-45e0-91bc-82a30aef8a9a/navier-stokes.pdf

There’s already a Wiki article about the controversy: https://en.wikipedia.org/wiki/Navier%E2%80%93Stokes\_priority\_controversy

Tristan Buckmaster statement: https://cims.nyu.edu/~tristanb/statement.pdf

An Open Letter from concerned mathematicians: https://docs.google.com/document/d/1N6ThWhupvmH0ofSnaxqnLEMfSTQX5cTLyTMYG27ID-w

Tony Padilla's book Fantastic Numbers and Where to Find Them - https://amzn.to/3VywNyy

Fields Medallist videos, including interviews with Fefferman and Tao: https://www.youtube.com/playlist?list=PLt5AfwLFPxWIDErJihuPX2S7E-0rnkaeu

Support Numberphile on Patreon (and access bonus material): http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Biggest Gaps Between Primes - Numberphile

Numberphile — Wed, 16 Sep 2026 09:44:00 +0000

Ben Sparks on why the gaps between primes can be as large as you imagine... More links & stuff in full description below ↓↓↓

Support us on Patreon: http://www.patreon.com/numberphile

See our playlist of videos about prime numbers - https://www.youtube.com/playlist?list=PL0D0BD149128BB06F
Including this video which has previously covered the large gaps - https://www.youtube.com/watch?v=BH1GMGDYndo

More Ben on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q

Ben Sparks: http://www.bensparks.co.uk/

Sparks Books...
Why Don't Rabbits Rule the World: https://amzn.to/4h3yWhJ
Maths: 100 Ideas in 100 Words: https://amzn.to/3RIpB4n

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Immortal Kangaroo Sequence - Numberphile

Numberphile — Fri, 4 Sep 2026 13:06:35 +0000

Neil Sloane shares the comma sequence. Then thoughts turn to immortal kangaroos leaping through minefields. More links & stuff in full description below ↓↓↓

BONUS MATERIAL
A digital curiosity associated with this video - https://www.patreon.com/numberphile/posts/168587472 (open access)
BTS timelapse of this video being filmed (Patrons only) - https://www.patreon.com/numberphile/posts/168593344

See more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\_llzWmTHMPb9QvV2

Neil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/

Some OEIS sequences related to this video...
Original sequence when we start at 1 - https://oeis.org/A121805
Landmines: https://oeis.org/A367341
Numbers where there are two choices: https://oeis.org/A367346
The infinite path (strictly speaking, it is the lowest infinite path, because there could be more than one): https://oeis.org/A367620
The sequence of 0's and 1's that lead to immortality (as we know it so far): https://oeis.org/A399179

Videos from Brady's chemistry trip to Australia (featuring wallabies, kangaroos, and koalas) - https://www.youtube.com/playlist?list=PLD8C8561114777F5A

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran & Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

2.685 is (almost) everywhere - Numberphile

Numberphile — Sat, 22 Aug 2026 14:09:57 +0000

Richard Elwes discusses Khinchin's constant which underlies 100% of numbers (but not every number). More about Jane Street Internships at https://jane-st.co/internships2027-Numberphile (episode sponsor). More links & stuff in full description below ↓↓↓

Extra footage from this interview: https://youtu.be/jl8Fk7PPeOc

We previously touched on the constant in this video from 2013: https://www.youtube.com/watch?v=VDD6FDhKCYA

More Richard on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWI42WXh1jnv51jHrcjatrk8

More about Richard Elwes (who is based at the University of Leeds): https://richardelwes.co.uk/

Richard's latest book Huge Numbers
Amazon (affiliate links)...
UK: https://amzn.to/4bSZA8v
US: https://amzn.to/4v3CIMp

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran & Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

291 Holes - Numberphile

Numberphile — Mon, 10 Aug 2026 11:59:00 +0000

Here's the original 'Holey Monster' video for full background: https://www.youtube.com/watch?v=BhSlqIe1CRQ
More links & stuff in full description below ↓↓↓

This video features Richard Elwes.
More info, including his books: https://richardelwes.co.uk/

More videos with Richard: https://www.youtube.com/playlist?list=PLt5AfwLFPxWI42WXh1jnv51jHrcjatrk8

Check out the Stella software we used: https://www.software3d.com/Stella.php

The Monster Group (unrelated Numberphile video): https://www.youtube.com/watch?v=jsSeoGpiWsw

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Cutting Moons - Numberphile

Numberphile — Wed, 5 Aug 2026 13:38:04 +0000

Neil Sloane is back, this time with some mathematical properties of Lunes. More links & stuff in full description below ↓↓↓

See more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\_llzWmTHMPb9QvV2

Neil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/

Some OEIS sequences related to this video (to get you started)...
https://oeis.org/A000217
https://oeis.org/A000124

Brady Haran videos relating to the Moon - https://www.youtube.com/playlist?list=PLXDUU63xAVsc

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Mountain Climbing Theorem - Numberphile

Numberphile — Tue, 28 Jul 2026 14:00:08 +0000

Sophie Maclean discusses the Mountain Climbing Theorem. More links & stuff in full description below ↓↓↓

Sophie Playlist: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJL8jqE19RlDCMJp7psCA6r

Sophie Maclean is based at Kings College, London: https://sophiethemathmo.wordpress.com

Brady's boiling water at Everest video - https://youtu.be/JTL4dj3Gx1o
Some short clips from the Everest Base Camp Trek - https://www.youtube.com/playlist?list=PLky6yurD40o7BWCHu2kkQX8CZ5zrhxV2I
Everest from a plane - https://www.youtube.com/watch?v=i3AK7c42mUY
Grave of Everest - https://www.youtube.com/watch?v=hgYJOIrmSG0
The Everest Problem (Objectivity) - https://www.youtube.com/watch?v=gXBYWc4L83Q
Letters from Everest (Objectivity) - https://www.youtube.com/watch?v=Y0cGW5bcQlM

Climbing pics of Sophie courtesy of Mike Nolan: https://mikenolanclimbing.co.uk/

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran & Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

1³+2³+3³+4³+5³+6³+7³+8³+9³+10³+11³+12³+13³+14³+15³+16³+17³+18³+19³+20³+21³+22³+23³+24³+25³+26³+...

Numberphile — Sat, 18 Jul 2026 13:18:40 +0000

Ben Sparks with stunning visual proofs of some famous sums of series. More links & stuff in full description below ↓↓↓

More Ben on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q

Ben Sparks: http://www.bensparks.co.uk/

Sum of the Integers (if you dare): https://www.youtube.com/playlist?list=PLt5AfwLFPxWK2zCU-4X1iuuu5m8hf6L1B

Geogebra files from this video...
Triangle numbers, sum of integers: https://www.geogebra.org/m/dmtqdkth
Sum of squares: https://www.geogebra.org/m/bx26yyac
Sum of cubes: https://www.geogebra.org/m/ytbpufrf

Books...
Why Don't Rabbits Rule the World: https://amzn.to/4h3yWhJ
Maths: 100 Ideas in 100 Words: https://amzn.to/3RIpB4n

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

2081681993819799846994786333448627702865224538845305484256394568209274196127380153785256484516 (etc)

Numberphile — Mon, 13 Jul 2026 14:48:18 +0000

Richard Elwes discusses the unimaginable numbers underlying the popular game Go. See the John Tromp interview at https://youtu.be/it9YGUibtcA
More links & stuff in full description below ↓↓↓

More Richard on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWI42WXh1jnv51jHrcjatrk8

More big numbers on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJ\_FwchNAjB3xa8UnoKdmQI

More about Richard Elwes (who is based at the University of Leeds): https://richardelwes.co.uk/

Richard's latest book Huge Numbers
Amazon (affiliate links)...
UK: https://amzn.to/4bSZA8v
US: https://amzn.to/4v3CIMp

John Tromp - https://tromp.github.io/
A Googolplex of Go Games - https://matthieuw.github.io/go-games-number/AGoogolplexOfGoGames.pdf

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Long Legged Letters - Numberphile

Numberphile — Sat, 4 Jul 2026 15:16:30 +0000

The legendary Neil Sloane discusses the use of 'long-legged letters' to chop infinite pancakes. More links & stuff in full description below ↓↓↓

See more Neil Sloane videos on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\_llzWmTHMPb9QvV2

Neil is the founder of the On-Line Encyclopedia of Integer Sequences (OEIS): https://oeis.org/

Some OEIS sequences related to this video (to get you started)...
https://oeis.org/A130883
https://oeis.org/A117625

Concrete Mathematics: https://amzn.to/4gpw2U9

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran & Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Fixed Point Theorem - Numberphile

Numberphile — Thu, 25 Jun 2026 15:01:39 +0000

Featuring Chelsea Tucker and Ben Sparks discussing Brouwer's Fixed Point Theorem. More links & stuff in full description below ↓↓↓

Play around with Ben's Geogebra file at: https://www.geogebra.org/m/mbfvuqyy

Chelsea Tucker is at the likes of https://www.instagram.com/mathschelsea/ and https://www.tiktok.com/@mathschelsea

Ben Sparks is at: https://www.bensparks.co.uk/
More Ben on Numberphile at: https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q
Ben also has a book coming out: https://amzn.to/43W55zP

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Palindrome Ages - Numberphile

Numberphile — Mon, 15 Jun 2026 15:02:15 +0000

Kat Phillips tumbles down a numerical rabbit hole after a text message from her mother. Extra footage at: https://youtu.be/bIbTfdbQaSE -- More links & stuff in full description below ↓↓↓

More about Kat, including links to her work and streaming and other stuff: https://katdoesmaths.me/
She's on Twitch here: https://twitch.tv/katdoesmaths

The entire text message exchange in all its glory can be found on our Patreon: https://www.patreon.com/numberphile/posts/161134605

Every number is the sum of three palindromes: https://youtu.be/OKhacWQ2fCs

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Abel (not Nobel) Prize - Numberphile

Numberphile — Wed, 3 Jun 2026 15:11:32 +0000

Numberphile creator Brady Haran sees Gerd Faltings receive the Abel Prize - and goes behind the scenes at this prestigious event in Norway. Playlist from the event (with the longer interviews) at https://www.youtube.com/playlist?list=PLt5AfwLFPxWL4w1j3Xc3hZekFUNHGHCfq

Abel Prize website: https://abelprize.no/
Abel Prize on YouTube: https://www.youtube.com/channel/UCIJF5m5y70ZQoDCXVq0k50A

Numberphile interviews with Fields Medallists: https://www.youtube.com/playlist?list=PLt5AfwLFPxWIDErJihuPX2S7E-0rnkaeu

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

The Unsolved Lollipop Problem - Numberphile

Numberphile — Wed, 27 May 2026 14:00:26 +0000

Featuring Neil Sloane - more details below. Gear Train (episode sponsor) is at https://www.metmo.co.uk/collections/gear-train with discount code NUMBERPHILE10OFF -- More links & stuff in full description below ↓↓↓

More Neil Sloane videos at: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\_llzWmTHMPb9QvV2

Neil Sloane is the founder of the OEIS: https://oeis.org/

Lollipop Numbers: https://oeis.org/A389624

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and Pete McPartlan
Thanks also to Jonas Karlsson
Extra checking by the Numberphile Society - special mention to Debbie and Felipe

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Red & Black Knights (extraordinary result) - Numberphile

Numberphile — Tue, 12 May 2026 13:05:01 +0000

Featuring Neil Sloane, founder of the OEIS... See the extra patterns and variations (including three knights) at https://youtu.be/VgmDuBCayPw
More links & stuff in full description below ↓↓↓

With thanks also to Jonas Karlsson - https://jonka364.github.io/

Neil Sloane is the founder of the On-Line Encyclopedia of Integer Sequences - https://oeis.org/

More videos with Neil Sloane: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJXQqPe\_llzWmTHMPb9QvV2

See our Trapped Knight video - https://youtu.be/RGQe8waGJ4w

OEIS sequences related to this video:
https://oeis.org/A308885 (only black knights)
https://oeis.org/A392177 & https://oeis.org/A392178 (red & black knights)
https://oeis.org/A395357 (the final spiral)

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Videos by Brady Haran

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Entirely Ridiculously Big Numbers - Numberphile

Numberphile — Mon, 4 May 2026 13:12:05 +0000

Rubik's Cube combinations quickly lead to some unimaginably large numbers. More links & stuff in full description below ↓↓↓

Extra footage on odd-numbered cubes: https://youtu.be/CTb7RyTwoQ0

Featuring Richard Elwes. More Richard on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWI42WXh1jnv51jHrcjatrk8

Rubik's Cube playlist: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJNAdHv8TUCOmj7iKqyHZeg

More big numbers on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJ\_FwchNAjB3xa8UnoKdmQI

More about Richard Elwes (who is based at the University of Leeds): https://richardelwes.co.uk/

Richard's new book Huge Numbers
Waterstones (UK): https://www.waterstones.com/book/huge-numbers/richard-elwes/9781399818827
Barnes and Noble (US): https://www.barnesandnoble.com/w/huge-numbers-richard-elwes/1147952914
Or Amazon (affiliate links)...
UK: https://amzn.to/4bSZA8v
US: https://amzn.to/4v3CIMp

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran & Pete McPartlan

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/

Mathematician Attempts Art - Numberphile

Numberphile — Tue, 14 Apr 2026 14:27:17 +0000

Hannah Fry returns to Numberphile to showcase her art skills (and show us her new portrait at The Royal Society). See the Objectivity video (for more about the REAL artwork) at https://youtu.be/3HLxB5LbrDU
More links & stuff in full description below ↓↓↓

(Real) artist Chloe Barnes can be found at: https://www.chloebarnesartist.com/
(and a handful of limited edition prints of her Hannah portrait were still available at the time we published this video!)

Thanks also to artist Paulina Kwietniewska who did the painting of Chloe: https://paulinakwietniewska.com/

The Royal Society collections: https://royalsociety.org/about-us/what-we-do/collections/

Patreon: http://www.patreon.com/numberphile

Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet

We are also grateful for support from the Ben Delo Foundation - https://delo.org/

NUMBERPHILE
Website: http://www.numberphile.com/

Video by Brady Haran and James Hennessy

Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile

Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/

Brady's latest videos across all channels: http://www.bradyharanblog.com/