Prime and Composite Numbers (Rules)

What makes a number a prime number?

• It only has 2 factors, 1 and itself

• It is an even number

• it has more than 2 factors

• It is an odd number

True or False:

1 is a composite number

• False

• True

What makes a number a composite number?

• It has only 2 factors, 1 and itself

• It is an odd number

• It is an even number

• It has more than 2 factors

True or False:

All even numbers (except 2) are composite

• True

• False

True or false:

All odd numbers are prime

• True

• False

True or false:

The number 2 is the only even prime number

• True

• False

The number 1 is

• Prime

• Composite

• Neither

Which number is prime?

• 1

• 5

• 9

• 12

Which number is composite?

• 1

• 6

• 11

• 23

The only even prime number is

• 2

• 4

• 6

• 8