The William Lowell Putnam Mathematics Competition is a North American math contest for college students, organized by the Mathematical Association of America (MAA). Each year on the first Saturday in December, several thousand US and Canadian 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.
This web site contains problem statements, solutions, and competition results for recent years.
New problems and solutions will be posted here no sooner than the following Monday at 8pm Eastern (5pm Pacific); this embargo was set in consultation with competition director Daniel Ullman, in order to give exam supervisors time to mail their exam papers. We suggest that others observe a similar delay before discussing the exam online.
New results will be posted here as soon as they are received; this generally takes place in mid-February. (Until 2016, results were mailed in late March or early April.)
Some additional resources concerning the Putnam competition include the following.
This page is maintained by Kiran Kedlaya; contact me with corrections and other comments about this material only. I cannot provide individual scores (see your school's Putnam coordinator) or assist with exam administration (see the MAA's Putnam home page for instructions).
Problems and solutions from the 2018 competition, held on Saturday, December 1, are now posted. Some updates may be posted until the end of December.
Year | Problems | Solutions | Winners | Scores | |||
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2018 | TeX | TeX | |||||
2017 | TeX | TeX | HTML | HTML | |||
2016 | TeX | TeX | HTML | HTML | |||
2015 | TeX | TeX | HTML | HTML | |||
2014 | TeX | TeX | HTML | HTML | |||
2013 | TeX | TeX | HTML | HTML | |||
2012 | TeX | TeX | HTML | HTML | |||
2011 | TeX | TeX | HTML | HTML | |||
2010 | TeX | TeX | HTML | HTML | |||
2009 | TeX | TeX | HTML | HTML | |||
2008 | TeX | TeX | HTML | HTML | |||
2007 | TeX | TeX | HTML | HTML | |||
2006 | TeX | TeX | HTML | HTML | |||
2005 | TeX | TeX | HTML | HTML | |||
2004 | TeX | TeX | HTML | HTML | |||
2003 | TeX | TeX | HTML | HTML | |||
2002 | TeX | TeX | HTML | HTML | |||
2001 | TeX | TeX | HTML | HTML | |||
2000 | TeX | TeX | HTML | HTML | |||
1999 | TeX | TeX | HTML | HTML | |||
1998 | TeX | TeX | HTML | HTML | |||
1997 | TeX | TeX | HTML | HTML | |||
1996 | TeX | TeX | HTML | HTML | |||
1995 | TeX | TeX | HTML | HTML | |||
1994 | TeX | HTML | HTML | ||||
1993 | TeX | ||||||
1992 | TeX | ||||||
1991 | TeX | ||||||
1990 | TeX | ||||||
1989 | TeX | ||||||
1988 | TeX | ||||||
1987 | TeX | ||||||
1986 | TeX | ||||||
1985 | TeX |