Solution: The LCM of 1 and 70 is 70
Methods
How to Find the LCM of 1 and 70 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 1 and 70 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 70?
Let’s take a look at the first 10 multiples for each of these numbers, 1 and 70:
First 10 Multiples of 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
First 10 Multiples of 70: 70, 140, 210, 280, 350, 420, 490, 560, 630, 700
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 70 are 70, 140, 210. Because 70 is the smallest, it is the least common multiple.
The LCM of 1 and 70 is 70.
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!
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What is the LCM of 27 and 144?
What is the LCM of 80 and 81?
What is the LCM of 124 and 108?
What is the LCM of 110 and 104?