Factor Trees

What number is never allowed in a factor tree? 

• 13 (it's bad luck!)
• 1 
• 8675309
• 2

Tags

CCSS.6.EE.A.1

Which lists all the factors of 15?

• 1, 7, 8, 15
• 1, 15
• 1, 3, 5, 15
• 3, 5, 15

Tags

CCSS.4.OA.B.4

Which of the following numbers is a factor of 6?

• 12
• 2
• 8
• 10

Tags

CCSS.4.OA.B.4

Which set lists all the factors of 24?

• 1, 2, 3, 6, 7, 12, 24
• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 2, 3, 4, 5, 6, 8, 12, 24
• 1, 3, 4, 6, 8, 24

Tags

CCSS.4.OA.B.4

Which of the following is a factor of 8?

• 3
• 5
• 4
• 7

Tags

CCSS.4.OA.B.4

Which lists all the factors of 20?

• 1, 2, 4, 5, 10, 20
• 1, 2, 5, 10, 20
• 1, 4, 5, 20
• 1, 2, 10, 20

Tags

CCSS.4.OA.B.4

Which is not a factor of 21?

• 1
• 3
• 6
• 7

Tags

CCSS.4.OA.B.4

Which number is a factor of 27?

• 7
• 8
• 9
• 5

Tags

CCSS.4.OA.B.4

Which are the factors of 14?

• 1,14
• 1, 2, 7, 14
• 2, 7

Tags

CCSS.4.OA.B.4

Which number has 2 as a factor?

• 13
• 21
• 26
• 33

Tags

CCSS.4.OA.B.4