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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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  Subject Author Date
re(4): Master of the obvious - beg to differSteve Herman2016-12-14 08:25:43
Some Thoughtsre: extending the limit to 1700 (spoiler)Ady TZIDON2016-12-13 19:50:53
Some Thoughtsre(3): Master of the obvious - beg to differAdy TZIDON2016-12-13 19:49:34
re(2): Master of the obviousSteve Herman2016-12-12 19:50:45
Hints/Tipsre: Master of the obviousAdy TZIDON2016-12-12 18:48:11
Master of the obviousSteve Herman2016-12-04 12:03:45
Solutionextending the limit to 1700 (spoiler)Charlie2016-12-04 11:05:42
Solutioncomputer solution (spoiler)Charlie2016-12-04 11:01:08
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