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| Divisible Digits (Posted on 2024-09-16) |
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Determine all three-digit numbers N having the property that N is divisible by 11, and N/11 is equal to the sum of the squares of the digits of N.
computer solution
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 | Comment 1 of 2
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for n=110:11:999 ds=num2str(n)-'0'; s=sum(ds.^2); if s==n/11 disp(n) end end
finds
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Posted by Charlie
on 2024-09-16 16:05:19 |
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