The Six Triperfect Numbers Numberphile

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Ben Sparks discusses aliquot sequences and why 276 holds a surprise. This video continues at https://youtu.be/Yh1QUYn2f3I ...

Matt Parker talks about

Which of these

Eric Lander discusses how quasiperfect

Dr James Grime discusses highly composite

Main video is at: https://youtu.be/5TkIe60y2GI Featuring Matt Parker, author of Humble Pi: http://bit.ly/Humble_Pi

Richard Elwes discusses the original Big

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Dr James Grime discusses a couple of clever formulas which are pandigital - using all the

We are re-visiting Perfect

Ten factorial is 10x9x8x7x6x5x4x3x2x1 - or

Truncatable Primes with Dr James Grime... Check out Brilliant (and get 20% off their premium service): ...

Fermat's "Little" Theorem is great - but beware of Fermat Liars and tricky Carmichael

Tony Padilla takes a mathematical look at the pair of

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