Calculating the greatest common factor (GCF)

What is the highest number these two numbers can evenly be divided by? 
16 and 20

• 1
• 2
• 4
• 5

What id the GCF of 22 and 44?

• 22

• 44

• 88

• 1

Find the GCF between 36x⁴y² and 72x²y²

• 2x⁴y²
• 72x⁴y²
• 72x²y²
• 36x²y²

What is the GCF of 24c⁵ and 12c³?

• 6

• 12c

• 12c³

• 12

Find the GCF of 10 and 15

• 30

• 20

• 2

• 5

Question 8: Determine the greatest common factor of 18, 27, and 36.

• 12

• 9

• 15

• 20

What is the greatest common factor (GCF) of 32 and 80?

• 4

• 16

• 20

• 8

What is the greatest common factor of 70 and 42?

• 1

• 7

• 14

• 280

What is the GCF of 18 and 24?

What are the common factors of 5 and 10

• 1, 10

• 5, 10, 15, 20

• 1, 5

• 1, 2, 5, 10