Greatest Common Factor

Which of the following lists ALL of the common factors of 15?

• 3, 5, 15

• 1, 3, 10, 15

• 1, 3. 5, 15

• 1, 15

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 4 and 8?

• 1

• 2

• 4

• 8

What are ALL the common factors of 8 and 10?

• 1, 8, 10

• 1, 2

• 8

• 10

Tags

CCSS.4.OA.B.4

Identify the GCF of 10 and 12

• 2

• 5

• 6

• 10

• 12

What are the factors of 20?

• 1, 2, 4, 5, 10, 20

• 1, 2, 10, 20

• 20, 40, 60, 80, 100

• 2, 4, 5, 10, 20

Tags

CCSS.4.OA.B.4