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Numberphile: Season 2011

2011x07 220 and 284 (Amicable Numbers)

  • 2011-12-19T18:00:00Z on YouTube
  • 10m
  • United States
  • English
  • Documentary
Why do 220 and 284 get along so well? Dr James Grime introduces us to the world of so-called amicable numbers.
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