Greatest Common Factor

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

What is the greatest common factor (GCF) of 18 and 24?

• 6

• 3

• 12

• 9

What is the greatest common factor (GCF) of 18 and 30? (Just type the number)

Mathematical Equivalence

ON

Identify the greatest common factor of 14 and 49.

• 7

• 14

• 1

• 49

Find the GCF of 42 and 56.

• 7

• 14

• 28

• 42

GCF 24 and 36

• 8

• 6

• 12

• 4

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

• 8

• 4

• 5

• 2

• 16

• 32

• 3

• 11