GCF and LCM Quiz

Find the greatest common factor (GCF) of 12 and 18.

• 3

• 2

• 9

• 6

Find the least common multiple (LCM) of 8 and 12.

• 20

• 10

• 24

• 16

What is the GCF of 24 and 36?

• 6

• 18

• 30

• 12

Calculate the LCM of 15 and 25.

• 60

• 45

• 75

• 30

Determine the GCF of 16 and 24.

• 8

• 20

• 12

• 4

What is the LCM of 9 and 10?

• 90

• 80

• 100

• 70

Find the GCF of 40 and 60.

• 20

• 50

• 30

• 10

Calculate the LCM of 7 and 14.

• 28

• 14

• 7

• 21

What is the GCF of 32 and 48?

• 16

• 24

• 8

• 4

Find the LCM of 6 and 9.

• 12

• 15

• 18

• 21