MATH SOLVE

3 months ago

Q:
# What is the LCM of 134 and 91?

Accepted Solution

A:

Solution: The LCM of 134 and 91 is 12194
Methods
How to find the LCM of 134 and 91 using Prime Factorization
One way to find the LCM of 134 and 91 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 134?
What are the Factors of 91?
Here is the prime factorization of 134:
2
1
×
6
7
1
2^1 × 67^1
2 1 × 6 7 1
And this is the prime factorization of 91:
7
1
×
1
3
1
7^1 × 13^1
7 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: 2, 67, 7, 13
2
1
×
7
1
×
1
3
1
×
6
7
1
=
12194
2^1 × 7^1 × 13^1 × 67^1 = 12194
2 1 × 7 1 × 1 3 1 × 6 7 1 = 12194
Through this we see that the LCM of 134 and 91 is 12194.
How to Find the LCM of 134 and 91 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 134 and 91 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, 134 and 91:
What are the Multiples of 134?
What are the Multiples of 91?
Let’s take a look at the first 10 multiples for each of these numbers, 134 and 91:
First 10 Multiples of 134: 134, 268, 402, 536, 670, 804, 938, 1072, 1206, 1340
First 10 Multiples of 91: 91, 182, 273, 364, 455, 546, 637, 728, 819, 910
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 134 and 91 are 12194, 24388, 36582. Because 12194 is the smallest, it is the least common multiple.
The LCM of 134 and 91 is 12194.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 47 and 40?
What is the LCM of 42 and 148?
What is the LCM of 128 and 79?
What is the LCM of 80 and 93?
What is the LCM of 124 and 38?