Factors and Multiples Assessment (Topic 7)

Brad has 42 stamps to arrange on an album page. Which of the following are possible arrays Brad can make with the stamps? Select all that apply.

• 2 x 21

• 3 x 14

• 4 x 12

• 6 x 7

• 6 x 8

How many possible arrays can Brad make with the 42 stamps? Enter the number in the box.

What are all the factors of 42?

• 1, 2, 6, 7, 21, 42

• 1, 2, 3, 6, 7, 14, 21, 42

• 1, 2, 4, 6, 7, 12, 21, 42

• 1, 2, 3, 4, 6, 7, 12, 21, 42

How many factors are there for 42? Enter your answer in the box.

What do you notice about the number of factors of 42 and the number of arrays Brad can make with the stamps?

• The number of factors is 1 less than the number of arrays.

• The number of factors is 2 less than the number of arrays.

• The number of factors is 2 more than the number of arrays.

• The number of factors is the same as the number of arrays.

Which of the following are factor pairs for 42? Choose all that apply.

• 1 and 42

• 2 and 20

• 3 and 14

• 5 and 9

• 6 and 8

Which of the following statements are true?

• Forty-two is a prime number because prime numbers have exactly one factor pair.

• Forty-two is a prime number because prime numbers have more than one factor pair.

• 42 is a composite number because composite numbers have exactly one factor pair.

• 42 is a composite number because composite numbers have more than one factor pair.

Levi is learning about multiples and factors. He wrote 3 multiples and 3 factors for 27. Part A: Which set shows only MULTIPLES of 27?

• 1, 9, 27

• 9, 27, 81

• 3, 9, 27

• 27, 54, 81

Levi is learning about multiples and factors. He wrote 3 multiples and 3 factors for 27. Part B: Which set shows only FACTORS of 27?

• 1, 9, 27

• 1, 3, 27, 81

• 9, 18, 27

• 1, 3, 6, 27

Drew wrote 4 sets of numbers. Determine whether each set is a list of factors or a list of multiples for the number 8.