#include <iostream> using namespace std; int main() { int number = 29; bool isPrime = true; if (number < 2) { isPrime = false; } for (int i = 2; i * i <= number; i++) { if (number % i == 0) { isPrime = false; break; } } if (isPrime) { cout << number << " is a prime number"; } else { cout << number << " is not a prime number"; } return 0; }