Question 1

Is 1 a prime number?

Question 2

Is 2 a prime number?

Question 3

Is 7 a prime number?

Question 4

Is 15 a prime number?

Question 5

Is 3 a composite number?

Question 6

Is 11 a composite number?

Question 7

Is 33 a composite number?

Question 8

Is 13 a composite number?

Question 9

What kind of number is

**6**?

Question 10

What kind of number is

**19**?

Question 11

What kind of number is

**21**?

Question 12

What kind of number is

**17**?

Question 13

A product of two same numbers (except 1) is always:

Question 14

Even numbers (except 2) are always:

Question 15

A number can be both odd and composite?

Question 16

A number can be both even and prime?