Factors and Multiples

The common factors of 6 and 8 are ...

• 1, 2, 3, 4

• 1, 2, 3

• 1, 2

• 1, 3

Tags

CCSS.4.OA.B.4

The common factors of 15 and 20 are ...

• 1 & 5

• 1 & 4

• 3 & 5

• 2 & 5

Tags

CCSS.4.OA.B.4

A common factor of 12 and 27 is ...

• 2

• 3

• 4

• 5

1, 2, 4, 5, 10 are common factors of ....

• 5 and 10

• 10 and 20

• 10 and 15

• 15 and 20

Tags

CCSS.4.OA.B.4

is 1, 5 common factor of ...

• 5 and 9

• 15 and 21

• 10 and 15

• 22 and 30

Tags

CCSS.4.OA.B.4

Cora listed the factors of 45 as 1,5,9,45. Which factor pair did she forget?

• 3 x 15

• 7 x 7

• 6 x 8

• 3 x 3

Tags

CCSS.4.OA.B.4

What are the common factors of 10 and 20?

• 1, 2, 4, 5, 10 and 20

• 20, 40 and 60

• 1, 2, 4, 5 and 10

• 1, 2, 5 and 10

Which number is not a common factor of 9 and 18?

• 1

• 3

• 2

• 9

Tags

CCSS.4.OA.B.4

What are all the factors of 20?

• 1, 2, 4, 5 and 10

• 2, 4, 5, 10 and 20

• 1, 2, 4, 5, 10 and 20

• 20, 40, 60, 80 and 100

Tags

CCSS.4.OA.B.4

Which of the following statements are true?

• A factor of 10 is 3

• A factor of 100 is 11

• A factor of 8 is 4

Tags

CCSS.4.OA.B.4