A number NOBODY has thought of

Featuring Tony Padilla.

Check https://brilliant.org/numberphile for Brilliant and get 20% off their premium service (episode sponsor)

Tony at the University of Nottingham - https://www.nottingham.ac.uk/physics/people/antonio.padilla

Order Tony's book Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity
Amazon US - https://amzn.to/3JYQbws
Amazon UK - https://amzn.to/3M3yvB8
MacMillan US - https://us.macmillan.com/books/9780374600570/fantasticnumbersandwheretofindthem
Penguin UK - https://www.penguin.co.uk/books/316/316964/fantastic-numbers-and-where-to-find-them/9780241445372.html

Some videos with Tony on Numberphile - http://bit.ly/Padilla_Numberphile

And some videos with Tony on Sixty Symbols - https://bit.ly/Padilla_SixtySymbols