perplexus.info :: Numbers : A quotient and square problem

Home > Numbers

A quotient and square problem (Posted on 2006-09-23)

Determine all primes m for which the quotient (2^m-1 - 1)/m is a perfect square.

See The Solution Submitted by K Sengupta

Rating: 3.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: prelimanary findings

| Comment 2 of 5 |

(In reply to prelimanary findings by Charlie)

I came to the same two values for m as did Charlie -- 3 and 7.

Charile went through many more iterations than I before an overflow occured. (Excel spreadsheets do not allow for direct methods using large calculations).

Posted by Dej Mar on 2006-09-23 16:54:28

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 (18)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info