Prime or Not prime with while loop

#include<iostream.h>

#include<conio.h>

void main()

{

  char c = ‘y’;

  int n;

  while( c == ‘y’ || c ==’Y’ )

    {

clrscr();

cout<<” Enter a Number”<<endl;

cin>>n;
             int s = 0;

for(int i=1; i<=n; i++)

  {

            if(n%i==0)

                 s = s+1;

  }

if(s == 2)

cout<<” Prime Number”<<endl;

else

cout<<” Not Prime Number”<<endl;

cout<<” Do you want to check another number? Press ‘y’ for yes and ‘n’ for No ”<<endl;

cin>>c;

    }

getch();

}