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Multiply Digits, Get Quadratic (Posted on 2011-10-05) Difficulty: 3 of 5
Given that x is a positive integer, determine all possible values of a positive integer constant a such that the product of the digits in the base ten representation of x is equal to x2 ax - 22.

*** For an extra challenge, solve this puzzle without using a computer program.

See The Solution Submitted by K Sengupta    
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  Subject Author Date
SolutionDifferent solutionJer2011-10-05 11:34:16
full solution (no computer)Daniel2011-10-05 11:09:58
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