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Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

Sum of Natural Numbers (second proof and extra footage)

Sum of Natural Numbers (second proof and extra footage)

MAIN VIDEO IS AT: http://youtu.be/w-I6XTVZXww

Ed Copeland and Tony Padilla are physicists at the University of Nottingham.

How to always win at Dots and Boxes

How to always win at Dots and Boxes

Perfect Number Proof

Perfect Number Proof