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Topic: HELP NEEDED... simple formula but hard question...
Replies: 2   Last Post: Jul 24, 1996 4:17 PM

 Messages: [ Previous | Next ]
 Fabien Feschet Posts: 1 Registered: 12/12/04
HELP NEEDED... simple formula but hard question...
Posted: Jul 21, 1996 5:43 AM

Hi everyone,
I am trying to solve a very simple problem, but I thought it is
easy but I can't solve it. If anyone could help or tell me that this
simple problem is undecidable... or not ...
Let take n an integer different from zero.
I want to know if there exist k a natural number such that
1<= k < n, and such that (n-k) divides (2k+3)...

This seems to be a very simple problem but I can't solve it and
unfortunatly, I need to know an algorithm whose output will be yes or no.
This problem is a part of another problem that's why I need to solve it.

Be careful, this problem is much more complicated than what you'll think
first :))))

Fabien F.
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Date Subject Author
7/21/96 Fabien Feschet
7/21/96 Robert Israel
7/24/96 William C Waterhouse