Greatest Common Factors Quiz

What is the greatest common factor of 12 and 18?

• 6

• 15

• 9

• 3

Find the greatest common factor of 24 and 36.

• 18

• 6

• 12

• 30

Determine the greatest common factor of 30 and 45.

• 10

• 15

• 25

• 20

Calculate the greatest common factor of 40 and 60.

• 50

• 30

• 20

• 10

What is the greatest common factor of 72 and 90?

• 30

• 18

• 12

• 25

Find the greatest common factor of 56 and 84.

• 28

• 42

• 70

• 14

Determine the greatest common factor of 63 and 81.

• 18

• 9

• 12

• 15

Calculate the greatest common factor of 75 and 105.

• 10

• 30

• 25

• 15

What is the greatest common factor of 48 and 64?

• 10

• 16

• 24

• 32

Find the greatest common factor of 88 and 132.

• 110

• 44

• 22

• 66