Program : Prime or Not #include <iostream> using namespace std; bool… — C Programming Language || Hands On Coding — TG.ME

#include <iostream>
using namespace std;

bool isPrime(int num) {
    if (num < 2) {
        return false;
    }
    for (int i = 2; i * i <= num; i++) {
        if (num % i == 0) {
            return false;
        }
    }
    return true;
}

int main() {
    int num;
    cout << "Enter any number: ";
    cin >> num;
    if (isPrime(num)) {
        cout << num << " is a prime number" << endl;
    } else {
        cout << num << " is not a prime number" << endl;
    }
    return 0;
}