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

No Rating

Comments: ( You must be logged in to post comments.)

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

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info