Please enter a whole number: 3 The number is a prime number
4 The number is not a prime number!
5 The number is a prime number
6 The number is not a prime number!
7 The number is a prime number
8 The number is not a prime number!
9 The number is not a prime number!
10 The number is not a prime number!
11 The number is a prime number
12 The number is not a prime number!
13 The number is a prime number
14 The number is not a prime number!
15 The number is not a prime number!
16 The number is not a prime number!
17 The number is a prime number
18 The number is not a prime number!
19 The number is a prime number
20 The number is not a prime number!
21 The number is not a prime number!
22 The number is not a prime number!
23 The number is a prime number
24 The number is not a prime number!
25 The number is not a prime number!
26 The number is not a prime number!
27 The number is not a prime number!
28 The number is not a prime number!
29 The number is a prime number
30 The number is not a prime number!
31 The number is a prime number
32 The number is not a prime number!
33 The number is not a prime number!