GCF Prime Factorization

GCF of 99 and 54

• 9

• 3

• 6

• 8

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

Which pair of numbers have a GCF of 3?

• 15 and 27

• 20 and 30

• 45 and 15

• 9 and 18

What is the GCF of 6 and 12?

• 2

• 3

• 4

• 6

Find the Greatest Common Factor (GCF) of 60 and 75

• 1

• 3

• 5

• 15

What is the greatest common factor of 20a2b2 and 50b3?

GCF 24 and 36

• 8

• 6

• 12

• 4

Which pair of numbers has a GCF of 8?

• 8, 36

• 40, 80

• 16, 56

• 24, 42

Find the GCF:

• 1

• 2

• 8

• 12