Finding GCF With or Without Variables

What is the Greatest Common Factor of 16, 12, 28?

• 4

• 8

• 6

• 3

What is the Greatest Common Factor of 30, 40, 50?

• 10

• 15

• 20

• 5

What is the Greatest Common Factor of 18, 36, 54?

• 9

• 6

• 18

• 3

What is the Greatest Common Factor of 32, 24, 64?

• 4

• 8

• 16

• 24

What is the Greatest Common Factor of 33, 44, 121?

• 21

• 11

• 3

• 12

What is the Greatest Common Factor of 22, 18, 84?

• 9

• 11

• 4

• 2

What is the Greatest Common Factor of 34, 72, 343?

• 2

• 7

• 3

• 1

What is the Greatest Common Factor of 125, 625, 1225?

• 10

• 15

• 25

• 5

What is the Greatest Common Factor of 49, 27, 72?

• 1

• 3

• 7

• 9

What is the GCF of 6x³ and 9x?

• 6x

• 3x

• x²

• 2