Featuring Tony Padilla. See all three videos in this Apocalyptic Trilogy - More links & stuff in full description below ↓↓↓ The two sequels to this video are: Goliath Numbers - Primes and Fibonacci with 666 digits - Tony Padilla on Amazon - (Check out “Fantastic Numbers and Where to Find Them”) See our 666 Playlist - Big Numbers Playlist - Patreon: Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: We're also supported by the Simons Laufer Mathematical Sciences Institute (formerly MSRI): Our thanks also to the Simons Foundation: NUMBERPHILE Website: Numberphile on Facebook: Numberphile tweets: Subscribe: Video by Brady Haran and Pete McPartlan Numberphile T-Shirts and Merch: Brady's videos subreddit: Brady's latest videos across all channels: Sign up for (occasional) emails: