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Sum of 4 squares (Posted on 2018-07-08) Difficulty: 3 of 5
The number N is a sum of 4 different numbers, each being a square of one of the 4 smallest divisors of N (e.g. N=36 does not qualify since 1^2+2^2+3^2+4^2
sums up to 30, not 36.)

Provide a full list of similar numbers or show that none exist.

  Submitted by Ady TZIDON    
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Solution: (Hide)
130 = 1^2+2^2+5^2+10^2

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Just S/W notes...Steven Lord2018-07-08 22:59:26
solutionxdog2018-07-08 20:15:11
thoughtsSteven Lord2018-07-08 16:07:38
Some Thoughtscomputer finding (no proof of completeness)Charlie2018-07-08 15:55:49
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