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Some Powers Sum Square (Posted on 2008-07-04) Difficulty: 3 of 5
Determine all possible nonnegative integer(s) P such that 22P+1 + 2P + 1 is a perfect square.

See The Solution Submitted by K Sengupta    
Rating: 2.3333 (3 votes)

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1st p | Comment 1 of 10

Smallest p is 4:

22P+1 + 2P + 1  is 529 for p=4

 

next ???


  Posted by Ady TZIDON on 2008-07-04 19:55:21
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