Prime Factorization Quiz

What is a prime number?

• A number that is divisible by 10

• A number with more than two factors

• A number with exactly two distinct factors

• A number with only one factor

Which of the following is a prime number?

• 9

• 4

• 6

• 7

What are the prime factors of 16?

• 4, 4

• 8, 2

• 2, 2, 2, 2

• 16, 1

Which pair of numbers can be multiplied to start the factorization of 16?

• 1 and 16

• 2 and 8

• 4 and 4

• 3 and 5

What is the final set of prime factors for 16 using the alternative method?

• 16, 1

• 8, 2

• 4, 4

• 2, 2, 2, 2

What are the prime factors of 30?

• 5, 3, 2

• 10, 3

• 6, 5

• 15, 2

Which of the following is a correct factorization step for 30?

• 6 times 5

• 30 times 1

• 10 times 3

• 15 times 2

What are the prime factors of 42?

• 42, 1

• 7, 3, 2

• 6, 7

• 21, 2

Which pair of numbers can be multiplied to start the factorization of 42?

• 6 and 7

• 5 and 8

• 3 and 14

• 2 and 21

What is the final set of prime factors for 42?

• 6, 7

• 7, 3, 2

• 21, 2

• 42, 1