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Department of

Mathematics and Computer Science

Problem Of The Week


The Problem Of The Week (POTW) is a contest designed to challenge your thinking abilities through interesting mathematical problems and puzzles. The contest is open to everyone: students of all majors, faculty, high school students and the general public.


A new problem will be posted to this page every Monday at 3:00pm. The solution to a problem will be posted on Monday at 3:30pm, exactly one week after the posting of the problem.


Solutions can be submitted in one of two ways:

  • By email to: in the form of a PDF file, a scanned document or a Word document.
  • By dropping a hard copy at the Math/CS main office in Serra 133.

The day and time of submission are important in the scoring process (see scoring below). The deadline for submission is exactly one week after the posting of the problem.


The first 10 correct solutions will earn 10 points. The next 10 correct solutions will earn 7 points, and all subsequent correct solutions will earn 5 points. The n participants (n to be determined) with the highest scores at the end of the semester will be awarded a prize.

This Week's Problem

Click on "This Week's Problem" above to view the problem.

Solution To Last Week's Problem

Top Scorers

  •  Name  Institution  Points
    Tin Lam USD 70
    Craig Keuer Wheaton Warrenville South HS, IL 60
    Spencer Hecht Wheaton Warrenville South HS, Illinois 40
    Francisco Garcia USD 20
    Noah Thomas USD