Greatest Common Factor

What is the GCF of 40 and 20?

• 20

• 5

• 3

• 8

What is the GCF of 120 and 36?

• 2

• 12

• 18

• 24

What is the GCF of 36 and 12

• 2

• 5

• 12

• 18

What is the GCF of 18 and 45?

• 3

• 5

• 6

• 9

What is the GCF of 45 and 75?

• 15

• 30

• 5

• 25

The Greatest Common Factor of 16 and 40 is ​ (a)  

• 8

• 4

• 5

• 2

• 16

• 32

• 3

• 11

GCF 24 and 36

• 8

• 6

• 12

• 4

What is the greatest common factor of 14 and 49?

• 7

• 14

• 1

• 49

Identify the GCF of 100 and 150.

• 25

• 50

• 75

• 100

Find the GCF of 8 and 16.

• 12

• 8

• 4

• 2