Greatest Common Factor

What is the GCF of 36 and 24?

• 6

• 12

• 8

• 9

GCF of 10 and 50

• 10

• 2

• 5

• 50

What is the GCF of 18 and 45?

• 3

• 12

• 9

• 6

GCF 15 and 36

• 8

• 6

• 3

• 4

GCF of 32 and 40

• 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

What is the greatest common factor of 4 and 8?

• 2

• 8

• 4

• 1

What is the GCF of 18 and 36

• 9

• 2

• 18

• 36