GCF, LCM, Prime Factorization

What is the prime factorization of 68?

• 2 x 2 x 17

• 2 x 34

• 1 x 68

Find the prime factorization of 56.

• 2x2x2x7

• 2x28

• 3x3x7

What are the prime factors of 27?

• 3x3x3

• 3x2x3

• 3x3x4

Find the GCF:

• 1

• 2

• 8

• 12

Answer the following question by finding the GCF.

• 18

• 9

• 12

• 1

Find the LCM of:

• 1

• 5

• 10

• 20

Find the LCM of 10 and 12.

• 2

• 20

• 1

• 60

What would be the EXPANDED prime factorization of the number 18?

• 2 x 3 x 3

• 3 x 6

• 2 x 9

• 2 x 3

What would be the prime factorization of the number 75?

• 5 x 5 x 5

• 3 x 3 x 5

• 3² x 5

• 3 x 5²

Find the GCF of:

• 1

• 15

• 115

• 345