Ingresar un número positivo cualquiera. Decir si el mismo es o no primo utilizando un switch.

nclude <iostream>
using namespace std;

int main() {
    int num;
    cout << "I want to know your age." << endl;
    cin >> num;
    cout << "Your age is " << num << "." << endl;
    return 0;
}

A:

You need to use the cin.fail() function to check if the input was successful. If it was successful