Greatest Common Factor

What is the greatest common factor of 12 and 24?

• 6

• 4

• 3

• 12

Which are these are factors of 18?

• 2

• 3

• 18

• 8

• 9

What does GCF stand for?

• Greatest Commutative Factor

• Greatest Computer Feature

• Greatest Common Factor

• Greatest Common Feature

What is the greatest common factor of 6 and 12?

1, 2, 8, and 16 are factors of 16. What factor is missing?

• 3

• 4

• 6

• 10

When a number only has 2 factors (one and itself), it is...

• hopeless

• sad

• prime

• composite

When a number has more than two factors, it is...

• even

• odd

• prime

• composite

What is the greatest common factor of 20 and 30?

• 3

• 4

• 5

• 10

Select factors of 36.

• 1

• 2

• 3

• 4

• 6