MATH SOLVE

2 months ago

Q:
# What is the LCM of 107 and 89?

Accepted Solution

A:

Solution: The LCM of 107 and 89 is 9523
Methods
How to find the LCM of 107 and 89 using Prime Factorization
One way to find the LCM of 107 and 89 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 107?
What are the Factors of 89?
Here is the prime factorization of 107:
10
7
1
107^1
10 7 1
And this is the prime factorization of 89:
8
9
1
89^1
8 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: 107, 89
8
9
1
×
10
7
1
=
9523
89^1 × 107^1 = 9523
8 9 1 × 10 7 1 = 9523
Through this we see that the LCM of 107 and 89 is 9523.
How to Find the LCM of 107 and 89 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 107 and 89 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, 107 and 89:
What are the Multiples of 107?
What are the Multiples of 89?
Let’s take a look at the first 10 multiples for each of these numbers, 107 and 89:
First 10 Multiples of 107: 107, 214, 321, 428, 535, 642, 749, 856, 963, 1070
First 10 Multiples of 89: 89, 178, 267, 356, 445, 534, 623, 712, 801, 890
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 107 and 89 are 9523, 19046, 28569. Because 9523 is the smallest, it is the least common multiple.
The LCM of 107 and 89 is 9523.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 55 and 51?
What is the LCM of 101 and 72?
What is the LCM of 28 and 7?
What is the LCM of 61 and 34?
What is the LCM of 115 and 93?