Find greatest common factors — Review — page 1
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Worksheet directions

Grade 6 • Review • Choose a strategy for each problem. Explain or check your thinking where requested.

Sample questions

  1. A student says the GCF of 24 and 18 is 12. Test divisibility, then correct the answer.
  2. Find the greatest common factor of 72 and 54. List the common factors and explain why your choice is greatest.
  3. Use factor pairs to justify the GCF of 60 and 45. Explain why selecting the larger of the two numbers is not a general method.
  4. Find the greatest common factor of 48 and 36. List the common factors and explain why your choice is greatest.
  5. 60 red and 45 blue beads are divided into the greatest possible number of identical kits with none left. Find the number of kits and the contents of each.
  6. 84 red and 63 blue beads are divided into the greatest possible number of identical kits with none left. Find the number of kits and the contents of each.

See the preview for diagrams, answer spaces, and the complete layout.

Common Core connections

Source labels: 6.NS.B.4. Review the learning goals below to check the fit for your class.

  • 6.NS.B.4 — Greatest common factor, least common multiple

Bring it into your lesson

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