59 If n is a positive integer and r is the remainder when (n-1) enigma123 8 21 Jan 2012, 16:57 12 If n is a positive integer and r is the remainder when (n-1) kwhitejr 13 04 Aug 2010, 02:47 3 If n is a positive integer and r is the remainder when (n-1) raulmaldonadomtz 9 03 Jul 2010, 21:19 If n is a positive integer and r is the remainder when ( n+1 IgnitedMind 5 14 Sep 2008, 18:25 If n is positiv