Greatest Common Factor (GCF)

What is the GCF of 18 and 45?

• 3

• 12

• 9

• 6

GCF of 20 and 80

• 10

• 20

• 5

• 40

• Not Given

GCF of 9 and 36

• 3

• 6

• 9

• 12

• Not Given

GCF of 15 and 45

• 3

• 15

• 5

• 30

• Not Given

GCF of 48 and 84

• 3

• 4

• 48

• 12

• Not Given

GCF of 72 and 88

• 11

• 4

• 8

• 12

• Not Given

GCF of 36 and 90

• 9

• 18

• 36

• 12

• Not Given

GCF of 42 and 72

• 8

• 3

• 2

• 6

• Not Given

GCF of 30 and 28

• 2

• 4

• 6

• 7

• Not Given

GCF of 18 and 33

• 11

• 3

• 6

• 5

• Not Given