Go back to previous page
Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: This and that
Topic ID: 101
Message ID: 0
#0, prime number?
Posted by guy (Guest) on Mar-24-01 at 09:14 PM
how can this be proved?:
((5^125)-1)/((5^25)-1) is not a prime number.