Math Antics - Prime Factorization

What is a prime number?

• A number that can only be divided by 1.

• A number that has exactly two factors: 1 and itself.

• A number that has many factors.

• A number that is always even.

Which of these numbers is a prime number?

• 4

• 9

• 13

• 15

What is a composite number?

• A number that is only divisible by 1.

• A number that has exactly two factors.

• A number that is made by multiplying prime numbers together.

• A number that is always odd.

What is the prime factorization of 12?

• 2 x 6

• 4 x 3

• 2 x 2 x 3

• 1 x 12