TREE(Graham's Number) (extra) - Numberphile

Main video is at:    • TREE vs Graham's Number - Numberphile   - Featuring Tony Padilla... Supporting #TeamTrees on a quest to plant 20 million trees - https://www.teamtrees.org/ (Original brown papers from this video available to support the campaign - http://bit.ly/brownpapers) Do Numbers Exist:    • Do numbers EXIST? - Numberphile   Big Numbers: http://bit.ly/Big_Numbers More on Graham's Number:    • Graham's Number - Numberphile   Ron Graham videos: http://bit.ly/Ron_Graham More on TREE(3):    • The Enormous TREE(3) - Numberphile   Moon Trees:    • MOON TREES - Sixty Symbols   Video guides to Tree Species: http://bit.ly/TreesPlants NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook:   / numberphile   Numberphile tweets:   / numberphile   Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile Videos by Brady Haran Support us on Patreon:   / numberphile   Brady's videos subreddit:   / bradyharan   A run-down of Brady's channels: http://www.bradyharan.com Sign up for (occasional) emails: http://eepurl.com/YdjL9