How to Find Lcm?

To find the LCM or the least common denominator of numbers, you can do a list of multiples of the numbers and than look for the lowest multiple the numbers have in common. For example, to find the LCM of 12, 15, you need to make a list of multiple for these two numbers. For 12, these are 12 , 24, 36, 48, 60…, while for 15 they are 15, 30, 45, 60… . We can see the 60 is the LCM for these numbers. Another method used to find LCM is prime factorization. For more information look here: