Question

write a program in Java to accept two number and find the LCM of the two number

Answer 1

public class LCM { public static void main(String[] args) { int n1 = 72, n2 = 120, lcm; // maximum number between n1 and n2 is stored in lcm lcm = (n1 > n2) ? n1 : n2; // Always true while(true) { if( lcm % n1 == 0 && lcm % n2 == 0 ) { System.out.printf("The LCM of %d and %d is %d.", n1, n2, lcm); break; } ++lcm; } } }

When you run the program, the output will be:

The LCM of 72 and 120 is 360.

In this program, the two numbers whose LCM is to be found are stored in variables n1 and n2 respectively.

Then, we initially set lcm to the largest of the two numbers. This is because, LCM cannot be less than the largest number.

Inside the infinite while loop (while(true)), we check if lcm perfectly divides both n1 and n2 or not.

If it does, we've found the LCM. We print the LCM and break out from the while loop using break statement