In this post we discuss a method to find out LCM (least common multiple) of 2 numbers, LCM of 2 numbers is the least number that is divisible by 2 numbers. for example, if we consider 4 and 5 then their LCM is 20. Though there are a lot of methods to find LCM of 2 numbers here I will focus on find LCM using GCD of 2 numbers. Consider 'A' and 'B' to be 2 numbers so we calculate LCM by using the below formula The product of the numbers is equal to the product of their GCD and LCM. A * B = GCD(A,B) * LCM(A,B) If you want to know about GCD of 2 numbers then follow my post on GCD Here. In the following programs, we first find the GCD of 2 numbers and then divide the product of two numbers by the GCD to LCM of the numbers. C Program C++ Program Java program Python Program C Program C++ Program Java Program Python Program You might also be interested in Anagram Strings Double Linked List Finding Middle node ...