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Constant and Ratio Puzzle (Posted on 2016-01-30) Difficulty: 3 of 5
Determine all possible values of a positive integer constant C for which there exists an infinite number of pairs (A, B) of positive integers such that:
(A+B-C)!/(A!*B!) is an integer.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
quite generalarmando2016-02-26 03:18:29
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