Sample C++ Program To Check Prime Number - 11.

This program helps to identify whether the number entered by the user is a prime number or not.

SAMPLE PROGRAM:

#include <iostream.h>

#include <conio.h>

void main()
{

clrscr();
int i, flag = 0, n;

cout << "Enter the number: ";
cin >>n;

for(i = 1; i <= n / 2; i++)
  {
    if(n % i == 0)
    flag = 1;
    break;
  }

if(flag == 1)
cout << "\n Prime Number. ";

else
cout << "\n Not A Prime Number. ";

}

OUTPUT:

Enter the number: 7
Prime Number



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-- C++ Program To Check Whether A Number Is Prime Or Not.
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