Solution: The LCM of 130 and 95 is 2470
Methods
How to find the LCM of 130 and 95 using Prime Factorization
One way to find the LCM of 130 and 95 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 130?
What are the Factors of 95?
Here is the prime factorization of 130:
2
1
×
5
1
×
1
3
1
2^1 × 5^1 × 13^1
2 1 × 5 1 × 1 3 1
And this is the prime factorization of 95:
5
1
×
1
9
1
5^1 × 19^1
5 1 × 1 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: 2, 5, 13, 19
2
1
×
5
1
×
1
3
1
×
1
9
1
=
2470
2^1 × 5^1 × 13^1 × 19^1 = 2470
2 1 × 5 1 × 1 3 1 × 1 9 1 = 2470
Through this we see that the LCM of 130 and 95 is 2470.
How to Find the LCM of 130 and 95 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 130 and 95 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, 130 and 95:
What are the Multiples of 130?
What are the Multiples of 95?
Let’s take a look at the first 10 multiples for each of these numbers, 130 and 95:
First 10 Multiples of 130: 130, 260, 390, 520, 650, 780, 910, 1040, 1170, 1300
First 10 Multiples of 95: 95, 190, 285, 380, 475, 570, 665, 760, 855, 950
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 130 and 95 are 2470, 4940, 7410. Because 2470 is the smallest, it is the least common multiple.
The LCM of 130 and 95 is 2470.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 114 and 45?
What is the LCM of 101 and 104?
What is the LCM of 53 and 84?
What is the LCM of 63 and 148?
What is the LCM of 97 and 142?