In this post, we will write a C++ program to find out whether the given number is prime or not

C++ program to find out the given number is prime or not


C++ program to find out given number is prime or not.


#include<iostream>
#include<conio.h>

int main()
{
  system("cls");

    int i,n,count;

    std::cout<<"Enter any number = ";
    std::cin>>n;

    count = 0;
    i = 1;
    do
    {
        if(n%i == 0)
            count = count + 1;
        i++;
    }
    while (i<=n);

    if(count == 2)
        std::cout<<"The number is prime ";
    else
        std::cout<<"The number is not prime ";

    getch();
    return 0;
}



Output

Enter any number = 7
The number is prime