Factors and Multiples

12 x 5 = 60

Is 60 a factor or multiple?

• factor

• multiple

Tags

CCSS.4.OA.B.4

What are other multiples of 5?

• 16

• 18

• 20

• 25

Molly ate 31 grapes. Which correctly describes 31 as a prime number or a composite number and tells the number of factor pairs 31 has?

• 31 is a prime number because it has 0 factor pairs.

• 31 is a prime number because it has 1 factor pair.

• 31 is a composite number because it has 1 factor pair.

• 31 is a composite number because it has 2 factor pairs.

Tags

CCSS.4.OA.B.4

Which of the following is a factor of 12? Select all that apply.

• 12

• 2

• 24

• 3

Tags

CCSS.4.OA.B.4

What is the least common multiple of 20 and 30?

• 5

• 60

• 10

• 120

What is the greatest common factor of 20 and 30?

• 60

• 5

• 10

• 30

Select all of the multiples of 8.

• 2

• 8

• 32

• 4

Tags

CCSS.4.OA.B.4

A florist orders sunflowers every 6 days, and daisies every 4 days. How many days will pass until the next time she orders both kinds of flowers on the same day?

• 12 days

• 2 days

• 24 days

• 4 days

1, 2, 3 and 6 are factors of 6.

• True

• False

Tags

CCSS.4.OA.B.4

Seven is a factor of ...

• 14, 27, and 72

• 21, 28, and 42

• 1, 7, and 14

• 37, 47, and 57

Tags

CCSS.4.OA.B.4