Find the Greatest Common Factor By Prime Factorization #3

Find the greatest common factor (GCF) using the prime factorization method! Designed for a sixth-grade math curriculum, this one-page practice worksheet walks through an example of how to find the greatest common factor by finding the product of the prime factors that two numbers have in common. Then, learners will follow the example to complete four practice problems that feature numbers under 100. Keep the practice going with Find the Greatest Common Factor By Prime Factorization #1. For a fun way to practice finding the greatest common factor with the added challenge of finding the GCF of three numbers, check out GCF: Crack the Code!