The William Lowell Putnam Mathematics Competition is a North American math contest for college students. Each year on the first Saturday in December, over 2000 students spend 6 hours (in two sittings) trying to solve 12 problems. Individual and team winners (and their schools, in the latter case) get some money and a few minutes of fame.

The material on this page is intended to supplement the MAA's three existing compilations of Putnam exams. These books are:

All three are currently in print, and should be available for purchase through the MAA or at Amazon.com.

Problem statements given here are verbatim from the competition (except some diagrams are missing), and are copyrighted by the Mathematical Association of America. They appear here with permission, but unauthorized further redistribution is subject to copyright restrictions.

Solutions given here are compiled based on numerous sources, including many competitors; copyright is held by the named authors, who request that you link to this page in lieu of reproducing these solutions elsewhere. Please do not refer to these as "official solutions", as this creates confusion with the true official solutions issued by the MAA reflecting the intent of the problem setters. Those appear in the official exam summary, along with results and statistics, in the American Mathematical Monthly sometime in the year following the competition, usually in October. (One typically also finds solutions in Mathematics Magazine in early spring.) Results given here are taken from the summaries sent to participating schools along with exam results; this typically occurs in early April of the year following the competition.

For corrections and other comments, notify Kiran Kedlaya (kedlaya at ucsd dot edu).

The results and statistics from the 2015 competition are now posted. The statistics page now includes a corrected difficulty-by-problem table.
Year Problems Solutions Winners Scores
2015 TeX PDF TeX PDF HTML HTML
2014 TeX PDF TeX PDF HTML HTML
2013 TeX PDF TeX PDF HTML HTML
2012 TeX PDF TeX PDF HTML HTML
2011 TeX PDF TeX PDF HTML HTML
2010 TeX PDF TeX PDF HTML HTML
2009 TeX PDF TeX PDF HTML HTML
2008 TeX PDF TeX PDF HTML HTML
2007 TeX PDF TeX PDF HTML HTML
2006 TeX PDF TeX PDF HTML HTML
2005 TeX PDF TeX PDF HTML HTML
2004 TeX PDF TeX PDF HTML HTML
2003 TeX PDF TeX PDF HTML HTML
2002 TeX PDF TeX PDF HTML HTML
2001 TeX PDF TeX PDF HTML HTML
2000 TeX PDF TeX PDF HTML HTML
1999 TeX PDF TeX PDF HTML HTML
1998 TeX PDF TeX PDF HTML HTML
1997 TeX PDF TeX PDF HTML HTML
1996 TeX PDF TeX PDF HTML HTML
1995 TeX PDF TeX PDF HTML HTML
1994 TeX PDF   HTML HTML
1993 TeX PDF      
1992 TeX PDF      
1991 TeX PDF      
1990 TeX PDF      
1989 TeX PDF      
1988 TeX PDF      
1987 TeX PDF      
1986 TeX PDF      
1985 TeX PDF