Program to Check Whether a Number is Prime or Not

 Prime Number Program

In this article, we discussed the program to check whether a number is Prime or not.

C++ Program to Check Whether a Number is Prime or Not

#include<iostream>

using namespace std;

int main()

{

    int n;

    cout<<" Enter the Number "<<endl;

    cin>>n;

    bool isPrime=1;

    for(int i=2;i<n; i++){

        if(n%i==0){

            //cout<<"Not Prime"<<endl;

            isPrime=0;

            break;            // Use of Break

        }

       

    }

    if(isPrime==0){

        cout<<"Not a Prime number"<<endl;

    }

    else

    {

        cout<<"Prime Number"<<endl;

    }

}

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