Greatest Common Factor Quiz

What is the greatest common factor of 12 and 18?

• 2

• 3

• 4

• 6

Find the greatest common factor of 24 and 36.

• 4

• 6

• 8

• 12

What is the greatest common factor of 15 and 25?

• 3

• 5

• 10

• 15

Find the greatest common factor of 48 and 60.

• 6

• 12

• 24

• 48

What is the greatest common factor of 36 and 54?

• 6

• 9

• 12

• 18

Find the greatest common factor of 20 and 30.

• 2

• 5

• 10

• 15

What is the greatest common factor of 72 and 90?

• 6

• 9

• 12

• 18

Find the greatest common factor of 16 and 24.

• 2

• 4

• 8

• 16

What is the greatest common factor of 40 and 50?

• 5

• 10

• 20

• 25

Find the greatest common factor of 64 and 80.

• 4

• 8

• 16

• 32