Factors & Multiples

Which of the following is a factor pair of 72?

• 8 and 9

• 12 and 7

• 36 and 36

• 9 and 7

The following numbers are all __________________________ of 5.

• Answers

• Numbers

• Factors

• Multiples

All of the factor pairs for the number 40 are listed below.

1 and 40

2 and 20

4 and 10

5 and 8

• True

• False

Which of the following are prime numbers?

• 383

• 72

• 54

• 211

28, 35, 42, 49 and 56 are all multiples of which number?

• 7

• 3

• 12

• 8

List all the factors of 24

(a)  

Find the HCF of 15 and 6.

• 5

• 6

• 3

• 2

What is a factor of 120? Please choose ALL that apply.

• 20

• 5

• 35

• 20

List the prime factorization of 24.

• 2×2×2×3

• 3×2×4

• 3×8

• 12×2

Is the first number a factor of the second number? 9, 146

• Yes

• No