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Primes and Squares (Posted on 2009-08-16) Difficulty: 3 of 5
Determine all possible triplet(s) (P, Q, R) of nonnegative integers, with P ≥ Q, such that each of P2 + 1 and Q2 + 1 is a prime, and: (P2 + 1)(Q2 + 1) = (R2 + 1).

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
No way?armando2016-02-06 18:02:12
ThoughtsBrian Smith2016-02-06 13:46:57
Some Thoughtscomputer explorationCharlie2009-08-16 16:50:32
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