Schur Numbers (the world's biggest proof) - Numberphile

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Featuring Sophie Maclean - Learn more about Figgie at https://www.figgie.com/ or search “figgie” in the App Store or Google Play - More links & stuff in full description below ↓↓↓ Sophie Maclean: https://sophiethemathmo.wordpress.com/ More Sophie on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJL8jqE19RlDCMJp7psCA6r The Friends and Strangers Theorem: https://youtu.be/xdiL-ADRTxQ 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 Ben Delo. NUMBERPHILE Website: http://www.numberphile.com/ Video by Brady Haran and Pete McPartlan Thanks to fact checkers from the Numberphile Society, especially Michael Colognori and Trymain Rivero 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/ Sign up for (occasional) emails: http://eepurl.com/YdjL9