The Four 4s - Numberphile

It was a famous problem for many years - until a physics genius solved it all the way to infinity. Featuring author Alex Bellos - more links below. Extras from this interview: More Numberphile videos with Alex: Alex’s recent book about puzzles (including the Four 4s): More Alex books: With a sincere thanks to these Patrons... Jeff Straathof Today I Found Out Peggy You’ll Christian Cooper Dr Jubal John James Bissonette Ken Baron Andrzej ’Yester’ Fiedukowicz Bill Shillito Tony Fadell Erik Alexander Nordlund Thomas Buckingham Susan Silver OK Merli Tyler O’Connor Jon Padden Ciprian Stan Vali Dobrota D Hills Charles Southerland Arnas plusunim Paul Bates Jordan Smith Tracy Parry Kristian Joensen Tryggve Johannesson Alfred Wallace Join out Patreon supporters at: http