Owlet puzzle #10
Released Wednesday, July 15, 2026 UTC
220
the answer for puzzle #10
The five clues
- A three-digit number.
- It has a paired 'friend' whose divisors sum to it.
- Its own proper divisors sum to 284.
- The other half of the smallest amicable pair.
- 220 and 284 form the pair known since Pythagoras.
Backstory
First amicable pair (220, 284). Fermat added (17296, 18416) in 1636.
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