GCF/LCM

What is the GCF of 24 and 30?

• 12

• 2

• 6

• 8

What is the LCM of 4 and 10?

• 4

• 40

• 20

• 10

Fill in the missing multiple for 4: 4, 8, 12, ____ 20

• 15

• 10

• 12

• 16

Find the LCM for 8 and 12

• 2

• 24

• 16

• 4

Find the GCF for 5 and 15

• 3

• 1

• 5

• 2

Find the GCF for 10 and 12

• 20

• 60

• 2

• 4