Factoring with a Gcf

What is the greatest common factor of 6 and 21?

• 6

• 2

• 3

• 7

What is the GCF of 4 and 12?

• 3

• 1

• 6

• 4

GCF of 15 and 35

• 15

• 3

• 7

• 5

GCF of 28 and 40

• 2

• 4

• 7

• 8

What is the greatest common factor of 48x²and 32x³?

• 8x²

• 16x²

• 16x

• 96x³

What is the greatest common factor of 28y²and 49y²?

• 7y

• 21y²

• 196y²

• 7y²

What is the greatest common factor of 20a²b² and 50b³?

• 100a²b²

• 10b³

• 10ab²

• 10b²

What is the greatest common factor of 30x and 56x²

• 4x

• 6x

• 2x

• x

What is the greatest common factor of 18xy³ and 25x³y²?

• xy²

• x³y²

• 1

• x²y³

Factor: 12x²y⁴ - 6xy

• 3xy (4xy³ - 2)

• 6xy (2xy³ - 1)

• 6xy (2x³y⁵ - x²y²)

• 6xy ( 2xy³)