Factor Warmup

What is the greatest common factor of 7 and 21?

• 1,7

• 1,3,7

• 1

• 7

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

What is the GCF of 20 and 30?

• 5

• 2

• 10

• 20

What is the Greatest Common Factor of 12 and 48?

• 6

• 12

• 4

• 16

What is the greatest common factor of 48 and 64?

What is the GCF of 12 and 16?

• 3

• 8

• 2

• 4

Greatest common Factor

• GCF

• MIA

• SOS

• LCF

What is the greatest common factor of 4 and 16?

• 4

• 2

• 1

• 16

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25

• 1, 5,  25

• 1, 25

• 1, 5

What is the GCF of 24 and 30?

• 2

• 12

• 6

• 3