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.

Learn to determine the greatest common factor of a set of numbers in this sixth-grade worksheet!

Find the greatest common factor (GCF) using the prime factorization method with this sixth-grade practice worksheet!

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

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