prime and composite

one of the following is a prime number :

• 2

• 12

• 9

4 is a composite number :

• true

• false

one of the following is a prime number :

• 13

• 21

• 56

one of the following is a composite number :

• 12

• 23

• 41

all even numbers are composite:

• true

• false

prime numbers have only two factors

• true

• false

composite numbers have more than two factors :

• true

• false