Prime and Composite

Composite numbers:

• Are always bigger than prime numbers

• Have more than 2 factors

• Only have 2 factors

• Don't have factors

Find the prime number

• 20

• 13

• 21

• 6

What number is the only even prime number?

• 0

• 2

• 1

• 3

Is 63 a prime or composite number?

• Prime

• Composite

Choose ALL of the Composite Numbers (Hint: There are 3 answers)

• 27

• 13

• 73

• 66

• 49

A number that has EXACTLY TWO FACTORS is called a...

• odd

• even

• prime

• composite

A number that has THREE OR MORE FACTORS is called a...

• odd

• even

• prime

• composite

Can not be split in half.

• odd

• even

• prime

• composite

what is 81's factors? And is it prime or composite?

• 1, 81; prime

• 1, 9, 81; prime

• 1, 9, 81; composite

• 1, 81; composite

Is 5 prime or composite?

• prime, because it has one factor

• prime, because it has two factors

• composite, because it has three factors

• neither