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(7N-1 1)/N = Perfect Square (Posted on 2010-04-24) Difficulty: 3 of 5
Determine all possible prime number(s) N such that (7N-1 1)/N is a positive perfect square.

Prove that these are the only value(s) of N that satisfy the given conditions.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Some Thoughtscomputer explorationCharlie2010-04-24 13:43:39
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