In this tutorial, we are going to learn java program to calculate the least common multiple of two numbers.
Our program will take two numbers as the input from the user and return the LCM of input numbers.
For example
if the user inputs the numbers 4 and 6. then the output should be ‘12’ as 12 is the LCM of 4 and 6.
Java Program to calculate LCM of two numbers
import java.util.*;
public class Main {
public static void main(String[] args) {
double num1,num2,maxNum;
System.out.println("Java Program to calculate LCM" );
Scanner sc = new Scanner(System.in);
System.out.println("Please give first number");
num1= sc.nextDouble();
System.out.println("Please give second number");
num2 = sc.nextDouble();
maxNum = (num1 > num2) ? num1 : num2;
while (true) {
if (maxNum % num1 == 0 && maxNum % num2 == 0) {
System.out.println("LCM = "+maxNum );
break;
}
++maxNum;
}
}
}
Output
Java Program to calculate LCM
Please give first number
3
Please give second number
4
LCM = 12.0