Math Test Factors and Multiples

List all the factors of 36.

Find the factor pairs for 20. (fill in the blanks)

20 = 1 × __

20 = 2 × __

20 = 4 ×_

What are the first five common multiples of 4 and 14?

List the next four multiples of 8, after 32.

Which are composite numbers? Select all that apply.

• 21

• 38

• 45

• 53

• 99

What is the first common multiple of 4, 6, and 10?

What is the factor pairs for 12?

• 1 and 12

• 3 and 4

• 4 and 4

• 2 and 7

• 2 and 6

Find the first four multiples of 7.

The number 81 has the factors 1, 3, 9, 27, and 81, so 81 is

• prime

• composite

Tabitha's teacher asked her to write all the factors of 18. Which list shows all the factors of 18? (13-2)

• 1, 2, 3, 6, 9, 10, 12, 18

• 1, 2, 9, 18

• 2, 3, 6, 9

• 1, 2, 3, 6, 9, 18