Solution: The LCM of 129 and 59 is 7611
Methods
How to find the LCM of 129 and 59 using Prime Factorization
One way to find the LCM of 129 and 59 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 129?
What are the Factors of 59?
Here is the prime factorization of 129:
3
1
×
4
3
1
3^1 × 43^1
3 1 × 4 3 1
And this is the prime factorization of 59:
5
9
1
59^1
5 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: 3, 43, 59
3
1
×
4
3
1
×
5
9
1
=
7611
3^1 × 43^1 × 59^1 = 7611
3 1 × 4 3 1 × 5 9 1 = 7611
Through this we see that the LCM of 129 and 59 is 7611.
How to Find the LCM of 129 and 59 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 129 and 59 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, 129 and 59:
What are the Multiples of 129?
What are the Multiples of 59?
Let’s take a look at the first 10 multiples for each of these numbers, 129 and 59:
First 10 Multiples of 129: 129, 258, 387, 516, 645, 774, 903, 1032, 1161, 1290
First 10 Multiples of 59: 59, 118, 177, 236, 295, 354, 413, 472, 531, 590
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 129 and 59 are 7611, 15222, 22833. Because 7611 is the smallest, it is the least common multiple.
The LCM of 129 and 59 is 7611.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 19 and 122?
What is the LCM of 47 and 41?
What is the LCM of 107 and 136?
What is the LCM of 106 and 117?
What is the LCM of 104 and 140?