Solution: The LCM of 133 and 58 is 7714
Methods
How to find the LCM of 133 and 58 using Prime Factorization
One way to find the LCM of 133 and 58 is to start by comparing the prime factorization of each number. To find the prime factorization, you can follow the instructions for each number here:
What are the Factors of 133?
What are the Factors of 58?
Here is the prime factorization of 133:
7
1
×
1
9
1
7^1 × 19^1
7 1 × 1 9 1
And this is the prime factorization of 58:
2
1
×
2
9
1
2^1 × 29^1
2 1 × 2 9 1
When you compare the prime factorization of these two numbers, you want to look for the highest power that each prime factor is raised to. In this case, there are these prime factors to consider: 7, 19, 2, 29
2
1
×
7
1
×
1
9
1
×
2
9
1
=
7714
2^1 × 7^1 × 19^1 × 29^1 = 7714
2 1 × 7 1 × 1 9 1 × 2 9 1 = 7714
Through this we see that the LCM of 133 and 58 is 7714.
How to Find the LCM of 133 and 58 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 133 and 58 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 in the links below for each number.
Let’s take a look at the multiples for each of these numbers, 133 and 58:
What are the Multiples of 133?
What are the Multiples of 58?
Let’s take a look at the first 10 multiples for each of these numbers, 133 and 58:
First 10 Multiples of 133: 133, 266, 399, 532, 665, 798, 931, 1064, 1197, 1330
First 10 Multiples of 58: 58, 116, 174, 232, 290, 348, 406, 464, 522, 580
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 133 and 58 are 7714, 15428, 23142. Because 7714 is the smallest, it is the least common multiple.
The LCM of 133 and 58 is 7714.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 124 and 7?
What is the LCM of 134 and 86?
What is the LCM of 46 and 43?
What is the LCM of 99 and 36?
What is the LCM of 65 and 101?