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Some Digits Sum 37 (Posted on 2009-06-04) Difficulty: 2 of 5
Determine all possible positive base ten repdigit(s) N, such that the sum of the digits of N2 is equal to 37.

No Solution Yet Submitted by K Sengupta    
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Some Thoughts re(3): computer solution (a quibble) Comment 4 of 4 |
(In reply to re(2): computer solution (a quibble) by Charlie)

I'm convinced!  It is extremely unlikely that a repunit of more than 37 digits has a square whose digits sum to 37.  Thanks, Charlie  
  Posted by Steve Herman on 2009-06-04 22:40:23

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