Prime Factorization, Prime, Composite

What is the prime factorization of 24?

• 2 X 6

• 2 x 2 x 2 x 3

• 2 x 3 x 4

• 3 x 8

Which number is not prime?

• 5

• 7

• 15

• 19

What is the prime factorization of 30?

• 2 x 3 x 5

• 3 x 10

• 2 x 3 x 3

• 5 x 6

Which number is NOT a multiple of 8?

• 16

• 40

• 24

• 4

Tags

CCSS.4.OA.B.4

A prime number....

• Has more than 2 factors.

• Has only 4 factors.

• Has only 2 factors.

• Has multiple factors.

The number 1 is....

• composite

• prime

• neither prime nor composite

• factor

Tags

CCSS.4.OA.B.4

Which of the following is NOT prime?

• 29

• 39

• 17

• 23

Which number is composite?

• 1

• 3

• 11

• 51

What is the prime factorization of 90?

• 2 x 3 x 3 x 5

• 9 x 10

• 2 x 3 x 3 x 3

• 3 x 3 x 10

What is the prime factorization of 18?

• 2 x 9

• 3 x 6

• 2 x 3 x 3

• 3 x 3 x 3