Ch 1.5: Greatest Common Factor Quiz

What is the prime factorization of 36 using the factor tree?

• 2 * 2 * 2 * 2 * 2

• 2 * 3 * 3 * 3

• 2 * 2 * 3 * 3

• 2 * 2 * 2 * 3

Find the GCF of 12 and 18 using lists.

• 6

• 2

• 3

• 9

Find the GCF of 24 and 36 using the ladder method.

• 6

• 18

• 12

• 30

Find the GCF of 15 and 25 using Venn diagrams.

• 5

• 1

• 10

• 20

What is the prime factorization of 60 using the factor tree?

• 2 * 2 * 2 * 3

• 2 * 2 * 3 * 5

• 2 * 2 * 2 * 2 * 2

• 2 * 3 * 4 * 5

Find the GCF of 16 and 24 using lists.

• 12

• 4

• 8

• 20

Find the GCF of 30 and 45 using the ladder method.

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Find the GCF of 20 and 25 using Venn diagrams.

• 5

• 10

• 15

• 2

What is the prime factorization of 90 using the factor tree?

• 2 * 3 * 3 * 3

• 2 * 3 * 3 * 5

• 2 * 2 * 2 * 5

• 2 * 2 * 3 * 5

Find the GCF of 40 and 56 using lists.

• 8

• 14

• 10

• 4