Factors, Prime and Composite Numbers

I am a prime number between 30 and 40.  Which number could I be?

• 31

• 33

• 36

• 39

Is 33 a prime or composite number?

• Prime

• Composite

Which of these numbers is a composite number?

• 37

• 41

• 21

• 29

Which number is a FACTOR of 16

• 7

• 6

• 9

• 4

A prime number has

• one factor.

• two factors.

• three or more factors.

Which number is the only even prime number?

• 2

• 4

• 6

• 8

Composite numbers have

• no factors.

• one factor.

• two factors.

• three or more factors.

Which of the following numbers is prime?

• 10

• 15

• 5

• 20

True or False?

1 is a prime number.

• True

• False

Which of the following numbers is composite?

• 3

• 9

• 11

• 17