GCF and LCM Quiz

Find the Greatest Common Factor (GCF) of 24 and 36.

• 4

• 6

• 8

• 12

What is the Least Common Multiple (LCM) of 5 and 7?

• 35

• 70

• 14

• 21

Find the GCF of 18 and 27.

• 3

• 6

• 9

• 12

What is the LCM of 4 and 10?

• 20

• 40

• 10

• 30

Find the GCF of 14 and 35.

• 5

• 7

• 14

• 21

What is the LCM of 6 and 8?

• 24

• 48

• 12

• 18

Find the GCF of 32 and 48.

• 8

• 12

• 16

• 24

What is the LCM of 9 and 12?

• 18

• 24

• 36

• 48

Find the GCF of 20 and 50.

• 5

• 10

• 15

• 20

What is the LCM of 3 and 4?

• 7

• 12

• 9

• 15