Gcf and Factors

Which number is a factor of both 6 and 15?

• 9

• 5

• 6

• 3

Is 1 a factor of 12?

• Yes

• No

Is 5 a factor of 80?

• Yes

• No

What is the GCF(6, 9)

• 1

• 3

• 6

• 9

What is the GCF(8, 16)

• 2

• 4

• 8

• 16

What is the GCF(5, 7)

• 1

• 3

• 5

• 7

"Factor out" the GCF of the given expression and rewrite it as a product of the GCF and a sum.
55 + 22

• It can't be done.

• 11(5 + 2)

• 5(11 + 2)

• 2(5 + 11)

What are the common factors of 9 and 36?

Check all that apply.

• 1

• 3

• 4

• 9

• 36

Find the factors of 45 and 48. What is the GCF (greatest common factor)?

• 1

• 3

• 5

• 8

Find all the factors of 54 and 60. What is the GCF (greatest common factor)?

• 1

• 2

• 3

• 6

• 9