Solution: The LCM of 103 and 58 is 5974
Methods
How to find the LCM of 103 and 58 using Prime Factorization
One way to find the LCM of 103 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 103?
What are the Factors of 58?
Here is the prime factorization of 103:
10
3
1
103^1
10 3 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: 103, 2, 29
2
1
×
2
9
1
×
10
3
1
=
5974
2^1 × 29^1 × 103^1 = 5974
2 1 × 2 9 1 × 10 3 1 = 5974
Through this we see that the LCM of 103 and 58 is 5974.
How to Find the LCM of 103 and 58 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 103 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, 103 and 58:
What are the Multiples of 103?
What are the Multiples of 58?
Let’s take a look at the first 10 multiples for each of these numbers, 103 and 58:
First 10 Multiples of 103: 103, 206, 309, 412, 515, 618, 721, 824, 927, 1030
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 103 and 58 are 5974, 11948, 17922. Because 5974 is the smallest, it is the least common multiple.
The LCM of 103 and 58 is 5974.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 9 and 115?
What is the LCM of 77 and 139?
What is the LCM of 67 and 33?
What is the LCM of 56 and 39?
What is the LCM of 131 and 32?