Featuring Matt Parker - more Parker links below. Check out Brilliant (get 20% off their premium service): (sponsor) More links & stuff in full description below ↓↓↓ MATT PARKER STUFF Stand-Ups Maths on YouTube: Matt's website: Matt's Books (Amazon): Matt's playlist on Numberphile: Parker Square Merch: Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. And support from the Akamai Foundation: NUMBERPHILE Website: Numberphile on Facebook: Numberphile tweets: Subscribe: Videos by Brady Haran Patreon: Numberphile T-Shirts and Merch: Brady's videos subreddit: Brady's latest videos across all channels: Sign up for (occasional) emails: