Common Factors

Find the missing factor.

56 = 7 x ____

Which of the following have 8 as a factor?

• 4

• 32

• 16

• 84

Find the common factors of 24 and 52. List them out from increasing order and separate them with comma and space.

Which of the following pairs of numbers have 4 as a common factor?

• 12 and 42

• 36 and 54

• 64 and 28

• 56 and 92

Which of the following is NOT a factor of 63?

• 3

• 7

• 21

• 23