Prime Factors and Multiples

Which of the following numbers is a prime number?

• 21

• 17

• 27

• 35

Tags

CCSS.4.OA.B.4

• 1, 2, 3, 6, 9, 18

• 1, 2, 4, 9, 18

• 1, 3, 6, 12, 18

• 1, 2, 3, 9, 18

Tags

CCSS.4.OA.B.4

• 10

• 12

• 14

• 16

Which of the following numbers is NOT a prime number?

• 2

• 5

• 9

• 13

Tags

CCSS.4.OA.B.4

• 10

• 12

• 8

• 6

• 7

• 8

• 9

• 11

Tags

CCSS.4.OA.B.4

• 21

• 25

• 28

• Both A and C

Tags

CCSS.4.OA.B.4

Which of the following statements is true?

• Every prime number has exactly two factors.

• Every prime number has only one factor.

• Every prime number has more than two factors.

• Every prime number is even.

Tags

CCSS.4.OA.B.4