Understanding Factors and Multiples

Which of the following is a prime number?

• 4

• 7

• 9

• 10

What are the factor pairs of 12?

• 1 & 12, 2 & 6

• 1 & 12, 2 & 6, 3 & 4

• 2 & 5, 3 & 4

• 1 & 11, 3 & 4

What is a multiple of 5?

• 10

• 12

• 14

• 17

Which of the following is NOT a prime number?

• 2

• 3

• 5

• 4

What are the factor pairs of 16?

• 1 & 16, 2 & 8

• 1 & 16, 4 & 4

• 1 & 16, 2 & 8, 4 & 4

• 2 & 8, 3 & 5

Which of the following numbers is a multiple of 3?

• 15

• 22

• 29

• 31

Which number is a prime number?

• 15

• 21

• 11

• 27

What are the factor pairs of 9?

• 1 & 9

• 1 & 9, 3 & 3

• 2 & 4, 3 & 3

• 1 & 8, 2 & 4

Which of the following is a multiple of 4?

• 12

• 14

• 17

• 19

Which of the following is NOT a factor of 18?

• 2

• 3

• 4

• 9