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Hello there.

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

Perfect Number Proof

Perfect Number Proof

Brady Haran
Matt Parker, Perfect Numbers

This video follows on from: http://youtu.be/T0xKHwQH-4I

Objectivity: https://www.youtube.com/c/objectivityvideos
Mersenne Primes and Perfect Numbers, featuring Matt Parker.

Matt is the author of Things to Make and Do in the Fourth Dimension.
On Amazon US: http://bit.ly/Matt_4D_US
Amazon UK: http://bit.ly/Matt_4D_UK Signed: http://bit.ly/Matt_Signed

Sum of Natural Numbers (second proof and extra footage)

Sum of Natural Numbers (second proof and extra footage)
Perfect Numbers and Mersenne Primes

Perfect Numbers and Mersenne Primes