West factor trees

What is the missing factor?

• 1

• 2

• 5

• 8

What are the missing factors?

• 2 and 3

• 3 and 6

• 3 and 3

• 1 and 9

What is the missing factor?

• 3

• 5

• 6

• 7

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25

• 1, 5,  25

• 1, 25

• 1, 5

What are the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24

• 1, 3, 6, 8, 24

• 1, 2, 3, 4, 6

• 1, 24

Find the prime number

• 10

• 9

• 7

• 4

What factors do these numbers (18 and 27) have in common?

• 2

• 2 and 3

• 3 and 3

• 3

What factors do these numbers (16 and 24) have in common?

• 2

• 3

• 2 and 2

• 2, 2, and 2

Which number is a factor of 36?

• 7

• 9

• 10

• 5

Which number is a factor of 54?

• 5

• 9

• 4

• 3