Prime numbers

Prime Numbers have two factors

• 1 and 2

• 2 and itself

• 1 and itself

• 2 only

Which of these is not a prime number?

• 17

• 9

• 21

• 16

Numbers that have more than one factors are

• Prime Numbers

• Even Numbers

• Odd Numbers

• Composite Numbers

I am the only even number that is a prime number

There are ....... prime numbers between 1 and 100

• 20

• 25

• 30

• 35

Which of these set of numbers are prime numbers?

• 2, 3, 5

• 1, 2, 3

• 4, 5, 7

• 11, 13, 20

Circle the composite number