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6th Grade Greatest Common Factor (GCF) Worksheets

Ages 11-12 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

The greatest common factor (GCF) is the largest number that divides two or more numbers evenly, so the GCF of 18 and 45 is 9. This hub holds 4 worksheets for 6th grade, each with an answer key. Greatest Common Factor of Numbers to 50 includes pairs with a GCF of 1, Greatest Common Factor of Three Numbers uses sets like 60, 75 and 45, and Find Both the GCF and LCM pairs each GCF with an LCM (CCSS 6.NS.B.4).

6th GradeMathFactoringGreatest common factor (GCF)Clear All
Find Both the GCF and LCM - 6th Grade Factoring worksheet preview

Find Both the GCF and LCM

Grade6th Grade
TopicFactoring
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Greatest Common Factor of Numbers to 50 - 6th Grade Factoring worksheet preview

Greatest Common Factor of Numbers to 50

Grade6th Grade
TopicFactoring
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Greatest Common Factor of Three Numbers - 6th Grade Factoring worksheet preview

Greatest Common Factor of Three Numbers

Grade6th Grade
TopicFactoring
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Greatest Common Factor of Two Numbers - 6th Grade Factoring worksheet preview

Greatest Common Factor of Two Numbers

Grade6th Grade
TopicFactoring
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More factoring worksheets

Explore all of our 6th grade factoring worksheets, covering divisibility and prime factorization, greatest common factor (gcf), least common multiple (lcm).

Divisibility and prime factorizationLeast common multiple (LCM)

Frequently Asked Questions

List the factors of each number and pick the largest one they share, or multiply the prime factors they have in common. 80 = 2 to the 4th power × 5 and 48 = 2 to the 4th power × 3, so the GCF is 16.

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