Latihan 2

import java.util.Scanner;
class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Masukkan bilangan? ");
        int number = sc.nextInt();
        boolean isPrime = true;

        if (number <= 1) {
            isPrime = false;
        } else {
            for (int i = 2; i <= Math.sqrt(number); i++) {
                if (number % i == 0) {
                    isPrime = false;
                    break;
                }
            }
        }

        if (isPrime) {
            System.out.println(number + " adalah bilangan prima.");
        } else {
            System.out.println(number + " bukan bilangan prima.");
        }
    }

}