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4 numbers make 5 squares (Posted on 2016-06-30) Difficulty: 3 of 5
Find four whole numbers such that:

each pairwise sum is a perfect square and
the sum of all four is a perfect square.

No Solution Yet Submitted by Jer    
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re(2): A (bad?) guess | Comment 6 of 10 |
(In reply to re: A (bad?) guess by Charlie)

Now that I think of it, with two of my numbers' being equal, there are really only 3+1 = 4 different squares being formed from my solutions.
  Posted by Charlie on 2016-07-01 11:02:44

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