Exploring the Greatest Common Factor

Find the greatest common factor (GCF) of 24 and 36.

• 4

• 6

• 12

• 18

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DOK Level 2: Skill/Concept

What is the GCF of 45, 60, and 75?

• 5

• 10

• 15

• 20

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DOK Level 2: Skill/Concept

Using prime factorization, find the GCF of 56 and 98.

• 7

• 14

• 28

• 49

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DOK Level 2: Skill/Concept

Determine the GCF of 18, 24, and 30 using prime factorization.

• 2

• 3

• 6

• 12

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DOK Level 2: Skill/Concept

A gardener has 48 roses, 60 tulips, and 72 daisies. She wants to plant them in rows with the same number of each type of flower. What is the greatest number of rows she can plant?

• 6

• 8

• 12

• 24

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DOK Level 2: Skill/Concept

A teacher has 36 pencils, 54 erasers, and 90 notebooks. She wants to distribute them equally among students with no items left over. What is the maximum number of students she can distribute them to?

• 6

• 9

• 18

• 27

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DOK Level 2: Skill/Concept

Find the GCF of 84 and 126 using prime factorization.

• 14

• 21

• 42

• 63

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DOK Level 2: Skill/Concept

Using prime factorization, determine the GCF of 100, 150, and 200.

• 10

• 20

• 25

• 50

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DOK Level 2: Skill/Concept

A chef has 48 apples, 64 bananas, and 80 oranges. He wants to make fruit baskets with the same number of each type of fruit. What is the greatest number of baskets he can make?

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• 12

• 16

• 20

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DOK Level 2: Skill/Concept

Find the GCF of 32, 48, and 64 using prime factorization.

• 8

• 12

• 16

• 24

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DOK Level 2: Skill/Concept