Friedman Numbers - Numberphile

Professor Ed Copeland on Friedman Numbers - more below. More links & stuff in full description below ↓↓↓ Thanks to these supporters: Herschal Sanders -- Alex Bozzi -- OK Merli -- Joshua Wilson/Andrew Touchet -- Lê -- plusunim -- Jordan White -- Micky Baeza -- Tracy Parry And of course the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Support us on Patreon:   / numberphile   Adopted Numbers: http://www.numberphile.com/supporters/ FRIEDMAN NUMBERS (Friedman's site): http://bit.ly/FriedmanNumbers Pandigital Numbers:    • Why 381,654,729 is awesome - Numberphile   Vampire Numbers:    • Vampire Numbers - Numberphile   Discuss this video on reddit: http://redd.it/2g78sz Support us on Patreon:   / numberphile   NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook:   / numberphile   Numberphile tweets:   / 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:   / 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/n...