Example: Java Program to Find LCM of Two Numbers using For loop

import java.util.Scanner;

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public class Main {

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    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

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        int p, q, i, g = 0, x;

        // p & q - To store the two positive numbers

        // x - To store the LCM number

        // g - To store the GCD

​

        System.out.println ("-----Enter the two positive integer numbers-----");

        p = in.nextInt();

        q = in.nextInt();

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        for (i = 1; i <= p && i <= q; ++i) {

            if (p % i == 0 && q % i == 0) {

                g = i;

            }

        }

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        x = (p * q) / g;

        System.out.println ("\nThe LCM of two positive numbers " + p + " & " + q + " is " + x);

    }

}