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

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

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

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

Navigate a maze of greatest common factors in this fun worksheet!

Master least common multiples (LCMs) in this essential sixth-grade worksheet!