The biggest number we've ever tackled - TREE of Graham's Number.
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)
More links & stuff in full description below ↓↓↓

Extra footage from this interview:    • TREE(Graham's Number) (extra) - Numbe...  

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

We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outr...

And support from Math For America - https://www.mathforamerica.org/

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