Sorry, you need to enable JavaScript to visit this website.
Preparation Materials
Sample Math Problems used during previous competitions.
Preparation Videos

Learn more about prime factorization—understanding prime number, factors, Least Common Multiple (LCM) and Greatest Common Factor (GCF)—learn how to solve two prime factorization problems!

Discover two ways to find LCM and GCF.

Solve two square root problems without a calculator using prime factorization.

Learn a quick way to use prime factorization to find the number of whole number factors in two problems.

Learn a quick way to use prime factorization to find the sum of whole number factors in two problems.

Learn two strategies to find the area of a quadrilateral and the area of a square in a circle.

More ways to find the area of a quadrilateral that does not have a clear location on the coordinate graph.

Discover various strategies to solve for the area of an equilateral triangle.

Learn a different way find the area of a polygon formed by connecting coordinates.

Teachers: Some insights, tips and strategies for building a MATHCOUNTS competition program at your school.