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Eleven is a factor (Posted on 2013-09-26) Difficulty: 3 of 5
Determine all three-digit numbers N such that N is divisible by 11 and N/11 is equal to the sum of the squares of N's digits.

No Solution Yet Submitted by Ady TZIDON    
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Solution Excel solution Comment 1 of 1

550 / 11 = 50 = 25 + 25
803 / 11 = 73 = 64 + 9


  Posted by Larry on 2013-09-26 17:13:52
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