Test your ability to find the greatest common factor (GCF) of a set of numbers with this worksheet!

Become a GCF master with this math worksheet! Practice finding the greatest common factor of 2 or 3 numbers ranging all the way up to 100.

Grow students’ math skills with more practice finding the greatest common factor by using factor trees to find the prime factorization.

Use this number theory worksheet to practice finding the greatest common factor of two numbers by finding the prime factorization!