Greatest Common Factors

GCF of 4 and 6

• 2
• 3
• 4
• 6

What is the GCF of 4 and 12?

• 3
• 1
• 6
• 4

What is the GCF of 20 and 30?

• 5
• 2
• 10
• 20

what numbers are the factors of 9?

• 9,18,27,36
• 1,2,9
• 1,3,9
• 0,1,3,9

Tags

CCSS.4.OA.B.4

list the factors of 10

• 1,2,3,4,5,6,7,8,9,10
• 5,10,15,20,25,30
• 1,2,5,10
• 10,20,30,40,

Tags

CCSS.4.OA.B.4

Which number is a factor of 21

• 8
• 9
• 6
• 3

Tags

CCSS.4.OA.B.4

Which number is a factor of 23?

• 8
• 4
• 3
• 1

Tags

CCSS.4.OA.B.4

GCF of 5 and 35

• 7
• 5
• 2
• 35

GCF of 8 and 20

• 8
• 2
• 4
• 10

GCF of 15 and 35

• 15
• 3
• 7
• 5