Solution: The LCM of 1 and 120 is 120
Methods
How to Find the LCM of 1 and 120 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 1 and 120 is to begin to list a few multiples for each number. If you need a refresher on how to find the multiples of these numbers, you can see the walkthroughs for those here:
What are the Multiples of 1?
What are the Multiples of 120?
Let’s take a look at the first 10 multiples for each of these numbers, 1 and 120:
First 10 Multiples of 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
First 10 Multiples of 120: 120, 240, 360, 480, 600, 720, 840, 960, 1080, 1200
You can continue to list out the multiples of these numbers as long as needed to find a match. Once you do find a match, or several matches, the smallest of these matches would be the Least Common Multiple. For instance, the first matching multiple(s) of 1 and 120 are 120, 240, 360. Because 120 is the smallest, it is the least common multiple.
The LCM of 1 and 120 is 120.
Continue Practicing by Finding the LCM of Other Numbers
Take a look at some of our other walkthroughs, and you’ll be sure to be an expert at finding the LCM of any numbers in no time!
What is the LCM of 7 and 121?
What is the LCM of 52 and 15?
What is the LCM of 60 and 42?
What is the LCM of 103 and 95?
What is the LCM of 45 and 115?