Which is a NOT a factor of 9?

• 0

• 1

• 3

• 9

Tags

CCSS.4.OA.B.4

Find the greatest common factor of 20 and 30

• 2

• 5

• 10

• 15

Is 3 a factor of 12?

• yes

• no

Tags

CCSS.4.OA.B.4

Which of the following is a factor of 12? Select all that apply.

• 12

• 2

• 24

• 3

Tags

CCSS.4.OA.B.4

What are the factors of 15?

• 1, 2, 3, 5, 15

• 1, 3, 5, 15

• 1, 2, 3, 4, 5

• 1, 5, 10, 15

Tags

CCSS.4.OA.B.4

What are the prime factors of 27?

• 3x3x3

• 3x2x3

• 3x3x4

Find the prime factors of 45.

• 5x9

• 3x15

• 3x3x5

What are the prime factors of 90?

• 3x3x4x5

• 5x5x3

• 2x3x3x5

Use a number tree to find the prime factorization of 32

• 2 x 2 x 2 x 3

• 2 x 2 x 2 x 2 x 2