Matt Parker Reacts to Magic Squares of Squares - Numberphile
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New divisibility rule! (30,000 of them)
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Golden Ratio BURN (Internet Beef) - Numberphile
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More on Bertrand's Paradox (with 3blue1brown) - Numberphile
13:55
Imaginary numbers aren't imaginary
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Which number is larger? – Math puzzle
45:04
Why There's 'No' Quintic Formula (proof without Galois theory)
21:19
What are these symbols? - Numberphile
17:25