Prime Factors

which number below is NOT prime?

• 7

• 9

• 2

• 3

is 5 prime or composite?

• prime

• composite

A PRIME NUMBER is...

• a number that has only one factor.

• a number that has at least two factors.

• a number that has more than two factors.

• a number that has only two factors.
  (1 and itself)

Numbers that can be multiplied together to make a product.

• multiples

• sum

• factors

• facts

What is special about the number 2?

• 2 is composite

• 2 is prime an composite

• 2 is the only even prime number

• 2 is odd

Which number below is NOT PRIME?

• 2

• 11

• 13

• 18

Is 2 a prime or composite number?

• Prime

• Composite

Which number listed below is a prime number?

• 1

• 37

• 63

• 33

Which number is NOT prime?

• 3

• 7

• 17

• 21