Greatest Common Factor

GCF of 32 and 40

• 2

• 4

• 6

• 8

GCF of 16 and 18

• 4

• 2

• 6

• 8

Kiara baked 30 oatmeal cookies and 48 chocolate chip cookies to package in plastic containers
for her teacher friends at school. She wants to divide the cookies into identical containers so that each
container has the same number of each kind of cookie. If she wants each container to have the
greatest number of cookies possible, how many plastic containers does she need?

• 2

• 4

• 6

• 8

The Greatest Common Factor of two prime numbers is

• 0

• 1

• There are no common factors.

• Themselves.

Sara had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4

• 2

• 48

• 8

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

Find the GCF of 21 and 28

• 3

• 4

• 7

• 14

GCF of 9 and 36

• 3

• 6

• 9

• 12

• Not Given

GCF of 20 and 80

• 10

• 20

• 5

• 40

• Not Given

GCF of 15 and 45

• 3

• 15

• 5

• 30

• Not Given