8128 and Perfect Numbers - Numberphile

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Numberphile
Published at : 06 Dec 2020
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For many years, 8128 was the largest known perfect number. But what is a perfect number?
More links & stuff in full description below ↓↓↓

This video features Dr James Grime. James' own YouTube channel full of maths stuff can be found at http://www.youtube.com/singingbanana

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