Solution: The LCM of 1 and 139 is 139
Methods
How to Find the LCM of 1 and 139 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 1 and 139 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 139?
Let’s take a look at the first 10 multiples for each of these numbers, 1 and 139:
First 10 Multiples of 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
First 10 Multiples of 139: 139, 278, 417, 556, 695, 834, 973, 1112, 1251, 1390
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 139 are 139, 278, 417. Because 139 is the smallest, it is the least common multiple.
The LCM of 1 and 139 is 139.
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 123 and 144?
What is the LCM of 147 and 8?
What is the LCM of 51 and 78?
What is the LCM of 72 and 75?
What is the LCM of 117 and 125?