Greatest Common Factor

What is the GCF of 4 and 12?

• 6

• 4

• 3

• 7

What is the GCF of 20 and 30?

• 10

• 2

• 5

• 20

Find the Greatest Common Factor (GCF) of 12 & 27

• 12

• 3

• 9

• 1

Which pair of numbers has a GCF of 5?

• 10 and 25

• 45 and 9

• 10 and 30

• 50 and 6

Which is the correct list for the factors 12....

• 1, 2, 3, 4, 6, 12

• 1, 2, 3, 4, 8, 12

• 1, 2, 3, 5, 6, 12

• 1, 2, 3, 6, 9,12

What is the greatest common factor of 16 and 24?

• 6

• 2

• 4

• 8

What is the greatest common factor of 8 and 10?

• 1

• 3

• 4

• 2

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25

• 1, 5, 25

• 1,25

• 1,5

GCF of 18 and 24

• 2

• 4

• 3

• 6

What is the greatest factor of 28 and 49?

• 1

• 7

• 2

• 12