Greatest Common Factor (GCF)

GCF of 27 and 70

• 3
• 5
• 7
• 10

GCF of 28 and 40

• 2
• 4
• 7
• 8

GCF of 24 and 56

• 2
• 4
• 6
• 8

GCF of 99 and 54

• 9
• 3
• 6
• 8

GCF of 20 and 35

• 4
• 5
• 7
• 20

GCF of 20 and 70

• 2
• 5
• 7
• 10

Which is a factor of 15?

• 2
• 3
• 4
• 6

Tags

CCSS.4.OA.B.4

GCF of 20 and 35

• 4
• 5
• 7
• 20

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Tags

CCSS.4.OA.B.4

Which of the choices is not a factor of 24?

• 2
• 3
• 4
• 5

Tags

CCSS.4.OA.B.4