Dr James Grime discusses a couple of clever formulas which are pandigital - using all the numbers from 1-9. More on pandigital numbers: youtu.be/gaVMrqzb91w More on e: youtu.be/AuA2EAgAegE More James Grime videos: bit.ly/grimevideos Book James for a talk: jamesgrime.com The contest which gave us these formulas: www2.stetson.edu/~efriedma/mathmagic/0804.html Pi Playlist: bit.ly/PiPlaylist NUMBERPHILE Website: www.numberphile.com/ Numberphile on Facebook: www.facebook.com/numberphile Numberphile tweets: twitter.com/numberphile Subscribe: bit.ly/Numberphile_Sub Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): bit.ly/MSRINumberphile Videos by Brady Haran Support us on Patreon: www.patreon.com/numberphile Brady's videos subreddit: www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: www.bradyharanblog.com/ Sign up for (occasional) emails: eepurl.com/YdjL9

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