Prime Factorization and GCF/LCM Quiz-Prado

Which of the following numbers is a prime number?

• 15

• 17

• 21

• 25

What is the prime factorization of 60?

Find the greatest common factor (GCF) of 24 and 36.

• 4

• 6

• 12

• 18

What is the least common multiple (LCM) of 5 and 7?

• 12

• 25

• 35

• 42

Which of the following is a factor of 48?

• 5

• 6

• 7

• 9

Which of the following numbers is not a prime number?

• 11

• 13

• 16

• 19

What is the prime factorization of 84?

Find the greatest common factor (GCF) of 18 and 27.

• 3

• 6

• 9

• 12

What is the least common multiple (LCM) of 4 and 9?

• 18

• 24

• 28

• 36

Which of the following is a multiple of 7?

• 20

• 28

• 32

• 45