fork download
copy 
  1. #include <iostream>
  2.  
  3. #define PROMPT "Please enter a whole number: "
  4. #define NOT_PRIME " The number is not a prime number! "
  5. #define PRIME " The number is a prime number "
  6. #define DONE 0
  7. #define FIRST_FACTOR 3
  8.  
  9. using std::cout;
  10. using std::cin;
  11. using std::endl;
  12.  
  13. int main(){
  14.    int i;
  15.    int number;
  16.  
  17.    cout << PROMPT;
  18.    cin >> number;
  19.  
  20.  for (i=FIRST_FACTOR; i<=number; i++){
  21.         bool prime = true;
  22.         for (int n=2; n<=i-1; n++){
  23.            if (i%n == 0){
  24.               prime = false;
  25.            }
  26.         }
  27.         if(prime){
  28.            cout << i <<  PRIME << endl;
  29.         }
  30.         else{
  31.            cout << i <<  NOT_PRIME << endl;
  32.         }
  33.    }
  34.    return 0;
  35. }
Success #stdin #stdout 0s 2856KB
comments (?)
stdin
copy 
33
stdout
copy 
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!
https://ideone.com/6yp2Ot
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!