perplexus.info :: Just Math : Multiply Digits, Get Quadratic

Multiply Digits, Get Quadratic (Posted on 2011-10-05)

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
Different solution	Jer	2011-10-05 11:34:16
full solution (no computer)	Daniel	2011-10-05 11:09:58

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