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

Untouchable Numbers

Untouchable Numbers

Brady Haran
Ben Sparks, Number Theory, Perfect Numbers, Numberphile2

A continuation of our video about 276 and Aliquot Sequences with Ben Sparks.

See the first part at https://youtu.be/OtYKDzXwDEE

Ben Sparks: https://www.bensparks.co.uk

More Ben Sparks on Numberphile: http://bit.ly/Sparks_Playlist

Perfect Numbers on Numberphile: https://www.youtube.com/playlist?list=PLt5AfwLFPxWJILwhaYs0Cz76-XK4cu3WC

Amicable Numbers: https://youtu.be/fUSZBVYZdKY

Tetrahedral Numbers

Tetrahedral Numbers
Amazing 276

Amazing 276