video thumbnail 7:59
Friends and Strangers Theorem - Numberphile

2014-06-05

[public] 370K views, 7.63K likes, 256 dislikes audio only

A famous mathematical theorem explained with the help of Facebook, One Direction and a collection of Numberphile's Facebook followers.

More links & stuff in full description below ↓↓↓

Videos features Simon Pampena - https://twitter.com/mathemaniac

NOTE: Yes we should have used greater/equals symbols at around 5:15, but the meaning pretty clear and Brady and Simon live about 10,500 miles apart --- so not worth a re-shoot!

More on the theorem: http://en.wikipedia.org/wiki/Theorem_on_friends_and_strangers

Support us on Patreon: http://www.patreon.com/numberphile

NUMBERPHILE

Website: http://www.numberphile.com/

Numberphile on Facebook: http://www.facebook.com/numberphile

Numberphile tweets: https://twitter.com/numberphile

Subscribe: http://bit.ly/Numberphile_Sub

Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile

Videos by Brady Haran

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

Numberphile T-Shirts: https://teespring.com/stores/numberphile

Other merchandise: https://store.dftba.com/collections/numberphile