A Colorful Unsolved Problem Numberphile

Do odd perfect numbers exist? Head to to start your free 30-day trial, and the first 200 people get ... Main video is at: Featuring James Grime on the Hadwiger–Nelson Featuring James Grime... Check out Jane Street's "Puzzle Page" for great brain teasers ... This video continues from a previous video --- Fields Medallist Sir Timothy Gowers discusses Van ... Featuring Matt Parker... Part 2 (solution) here: More links & stuff in full description below ... Trisecting angles and calculating cube roots was a big

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