Solution: The LCM of 89 and 32 is 2848
Methods
How to find the LCM of 89 and 32 using Prime Factorization
One way to find the LCM of 89 and 32 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 89?
What are the Factors of 32?
Here is the prime factorization of 89:
8
9
1
89^1
8 9 1
And this is the prime factorization of 32:
2
5
2^5
2 5
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: 89, 2
2
5
×
8
9
1
=
2848
2^5 × 89^1 = 2848
2 5 × 8 9 1 = 2848
Through this we see that the LCM of 89 and 32 is 2848.
How to Find the LCM of 89 and 32 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 89 and 32 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, 89 and 32:
What are the Multiples of 89?
What are the Multiples of 32?
Let’s take a look at the first 10 multiples for each of these numbers, 89 and 32:
First 10 Multiples of 89: 89, 178, 267, 356, 445, 534, 623, 712, 801, 890
First 10 Multiples of 32: 32, 64, 96, 128, 160, 192, 224, 256, 288, 320
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 89 and 32 are 2848, 5696, 8544. Because 2848 is the smallest, it is the least common multiple.
The LCM of 89 and 32 is 2848.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 5 and 17?
What is the LCM of 119 and 124?
What is the LCM of 18 and 47?
What is the LCM of 37 and 24?
What is the LCM of 53 and 62?