Is 1 a prime number? Apparently not. Dr James Grime explains. More links & stuff in full description below ↓↓↓ James Grime's website is: NUMBERPHILE Website: Numberphile on Facebook: Numberphile tweets: Subscribe: Videos by Brady Haran Patreon: Brady's videos subreddit: Brady's latest videos across all channels: Sign up for (occasional) emails: Numberphile T-Shirts: Other merchandise: