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Four integers (Posted on 2016-12-04) Difficulty: 3 of 5
Find four distinct positive integers such that:
a. Each of them is below 500.
b. Multiplying any two of them and then incrementing the product by 1
produces a square number.

No Solution Yet Submitted by Ady TZIDON    
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Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re: extending the limit to 1700 (spoiler) | Comment 7 of 8 |
(In reply to extending the limit to 1700 (spoiler) by Charlie)

Nice indeed!
  Posted by Ady TZIDON on 2016-12-13 19:50:53

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