coding for the prime number

[fana]

i want u to help me to check my program either it is true or false...
when i run the program, the output will be like:
prime:3 prime:5 and so on. i didn't want the output will be like that.
i just want the output will be like this: (e.g., 3,5,7,11......).
thank you....

#include <iostream>     
using namespace std;
void prime_num(int);
int main(void)
{
 
int n = 100;     
prime_num(n);
 
}
 
void prime_num( int n)
 
{
        bool isPrime=true;    //The Bool structure provides some basic operations on boolean values.
        for ( int k = 3; k <= n; k++)
        {
                for ( int r = 2; r <= n; r++)
                {
                        if ( k!=r && k % r == 0 )
                        {
                          isPrime=false;
                          break;         // to stop looping
                        }
                }
                if (isPrime)
                {
                  cout << "  Prime: " << k <<  "";        // To show the output 
                }
                isPrime=true; 
        }
        system("pause");
}

[sicarie]

If you want it to just say:

Prime: 3, 5, 7, 11 ...

Then move the 'cout << "Prime: "; outside the loop.

As for testing, a compiler will do you better, and you'll get more experience than trying to get us to do and check your homework.