Solution: The LCM of 145 and 101 is 14645
Methods
How to find the LCM of 145 and 101 using Prime Factorization
One way to find the LCM of 145 and 101 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 145?
What are the Factors of 101?
Here is the prime factorization of 145:
5
1
×
2
9
1
5^1 × 29^1
5 1 × 2 9 1
And this is the prime factorization of 101:
10
1
1
101^1
10 1 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: 5, 29, 101
5
1
×
2
9
1
×
10
1
1
=
14645
5^1 × 29^1 × 101^1 = 14645
5 1 × 2 9 1 × 10 1 1 = 14645
Through this we see that the LCM of 145 and 101 is 14645.
How to Find the LCM of 145 and 101 by Listing Common Multiples
The first step to this method of finding the Least Common Multiple of 145 and 101 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, 145 and 101:
What are the Multiples of 145?
What are the Multiples of 101?
Let’s take a look at the first 10 multiples for each of these numbers, 145 and 101:
First 10 Multiples of 145: 145, 290, 435, 580, 725, 870, 1015, 1160, 1305, 1450
First 10 Multiples of 101: 101, 202, 303, 404, 505, 606, 707, 808, 909, 1010
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 145 and 101 are 14645, 29290, 43935. Because 14645 is the smallest, it is the least common multiple.
The LCM of 145 and 101 is 14645.
Find the LCM of Other Number Pairs
Want more practice? Try some of these other LCM problems:
What is the LCM of 11 and 105?
What is the LCM of 16 and 94?
What is the LCM of 13 and 137?
What is the LCM of 103 and 142?
What is the LCM of 143 and 77?