35: Write a program in C++ to check whether a number is prime or not. Go to the editor // Sample Output: // Input a number to check prime or not: 13 // The entered number is a prime number.

 

// 5. Write a program in C++ to check whether a number is prime or not. Go to the editor
// Sample Output:
// Input a number to check prime or not: 13
// The entered number is a prime number.

#include <iostream>
using namespace std;
int main()
{

    int num, number = 0;

    cout << "Input a number to check whether prime number or not: ";
    cin >> num;

    for (int i = 1; i <= num; i++)
    {

        if (num % i == 0)
        {
            number++;
        }
    }

    if (number == 2)
    {
        cout << "The entered number is a prime number. \n";
    }
    else
        cout << "The entered number is not a prime number \n";

    return 0;
}


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