Ex. Bank #4

// Shavit Borisov
// HW

import java.util.Scanner;

public class PrimeNumber {

    public static void main(String[] args)

    {
        Scanner in = new Scanner (System.in);

        int num;
        boolean prime = true;

        System.out.print("Enter a number: ");
        num = in.nextInt();

        for(int i = 2; i <= Math.sqrt(num); i++)
        {
            if((num % i) == 0)
            {
                prime = false;
                break;
            }
        }
        if(prime)
            System.out.println("Your number is prime.");
        else
            System.out.println("Your number is composite.");

        in.close();
    }

}