This free math - lcm calculator lets you calculate the least common multiple of two numbers. This lcm calculator uses lcm formula in such way that lcm method is very clear. Lcm questions and lcm definition can be understandable by its method of calculating lcm with its lcm by division method, whether it lcm of 8 and 12, lcm 8 and 12 or lcm of 8 and 6. Best mathematical tool for school and college! If you are a student, it will helps you to learn arithmetics and calculations with numbers.