Solution: The LCM of 113 and 143 is 16159
Methods
How to find the LCM of 113 and 143 using Prime Factorization
One way to find the LCM of 113 and 143 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 113?
What are the Factors of 143?
Here is the prime factorization of 113:
11
3
1
113^1
11 3 1
And this is the prime factorization of 143:
1
1
1
×
1
3
1
11^1 × 13^1
1 1 1 × 1 3 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: 113, 11, 13
1
1
1
×
1
3
1
×
11
3
1
=
16159
11^1 × 13^1 × 113^1 = 16159
1 1 1 × 1 3 1 × 11 3 1 = 16159
Through this we see that the LCM of 113 and 143 is 16159.
How to Find the LCM of 113 and 143 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 113 and 143 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, 113 and 143:
What are the Multiples of 113?
What are the Multiples of 143?
Let’s take a look at the first 10 multiples for each of these numbers, 113 and 143:
First 10 Multiples of 113: 113, 226, 339, 452, 565, 678, 791, 904, 1017, 1130
First 10 Multiples of 143: 143, 286, 429, 572, 715, 858, 1001, 1144, 1287, 1430
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 113 and 143 are 16159, 32318, 48477. Because 16159 is the smallest, it is the least common multiple.
The LCM of 113 and 143 is 16159.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 135 and 56?
What is the LCM of 149 and 29?
What is the LCM of 106 and 147?
What is the LCM of 123 and 71?
What is the LCM of 131 and 41?