What’s special about 277777788888899? – Numberphile

From Numberphile. Matt Parker discusses multiplicative persistence. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) Extra footage: https://youtu.be/E4mrC39sEOQ Matt’s new book is Humble Pi: http://bit.ly/Humble_Pi More Matt videos on Numberphile: http://bit.ly/Matt_Videos The Multiplicative record holders: https://oeis.org/A003001 More info: http://mathworld.wolfram.com/MultiplicativePersistence.html Hear Matt on the Numberphile podcast… http://bit.ly/Numberphile_Pod_Playlist More links & stuff in full…

A Colorful Unsolved Problem – Numberphile

From Numberphile. James Grime on the Hadwiger–Nelson problem. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) Extra footage from this interview: https://youtu.be/7nBtRKvUox4 The Four Color Map Theorem: https://youtu.be/NgbK43jB4rQ More on James Grime (you can book him for talks): http://singingbanana.com More James Grime videos: http://bit.ly/grimevideos The de Grey paper: https://arxiv.org/abs/1804.02385 A good write…

Heesch Numbers and Tiling – Numberphile

From Numberphile. Get your first audiobook free with an Audible 30-day trial. Go to http://www.audible.com/numberphile or text numberphile to 500 500. More links & stuff in full description below ↓↓↓ This video features Edmund Harriss from University of Arkansas. Extra footage from this interview: https://youtu.be/7ehaadVtaMI Heesch’s Tiling Problem by Casey Mann: http://faculty.washington.edu/cemann/Heesch.pdf Check out the…

1010011010 – Numberphile

From Numberphile. Featuring Simon Singh – catch him on the latest Numberphile Podcast too… https://youtu.be/kOttzKC33Vk More links & stuff in full description below ↓↓↓ Catch the Numberphile Podcast at: http://bit.ly/Numberphile_Pod_Playlist or at https://www.numberphile.com/podcast/ More videos with Simon on Numberphile: http://bit.ly/SimonSinghPlay Simon has written a book about math in The Simpsons and Futurama… And other books……

The Trapped Knight – Numberphile

From Numberphile. Featuring Neil Sloane… Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Trapped Knight T-Shirt: https://teespring.com/en-GB/numberphile-trapped-knight Neil Sloane is creator of the On-Line Encyclopedia of Integer Sequences: https://oeis.org For more on the sequences and diagrams in this video, you can start…

The Graceful Tree Problem – Numberphile

From Numberphile. This video features Gordon Hamilton. More links & stuff in full description below ↓↓↓ Gord’s mathpickle website: http://mathpickle.com The Dollar Game: https://youtu.be/U33dsEcKgeQ More videos with Gordon: http://bit.ly/Gord_Playlist Discuss this video on Brady’s subreddit: https://redd.it/ai9t11 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a…

Divisibility Tricks – Numberphile

From Numberphile. Featuring Tony Padilla… Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Extra footage and trick from this interview: https://youtu.be/ZWeUNUCf2rI Card trick and shuffling videos on Numberphile: http://bit.ly/Cards_Shuffling Belphegor’s Prime: https://youtu.be/zk_Q9y_LNzg Numberphile playing cards (limited and occasional supply): http://bit.ly/NumberphileCards I Love…

Randomness is Random – Numberphile

From Numberphile. Featuring Simon Pampena… Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More coin-related videos: http://bit.ly/coins_videos More videos with Simon Pampena: http://bit.ly/Pampena_Videos Simon on Twitter: https://twitter.com/mathemaniac Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported…

Introducing the Numberphile Podcast

From Numberphile. Search for Numberphile on your podcast player. See the videos on Numberphile2: http://bit.ly/Numberphile2 More links & stuff in full description below ↓↓↓ More details about how to listen… http://www.bradyharanblog.com/blog/the-numberphile-podcast Podcast Playlist on YouTube: http://bit.ly/Numberphile_Pod_Playlist Hannah Fry episode: https://youtu.be/KKCjQWmUwv8 3brown1blue episode: https://youtu.be/A0RH93XvSyU Ken Ribet episode: https://youtu.be/NPOw4iIxN6o Brady’s other podcasts… Hello Internet: http://www.hellointernet.fm/ The Unmade…