Q:

What is the LCM of 139 and 111?

Accepted Solution

A:
Solution: The LCM of 139 and 111 is 15429 Methods How to find the LCM of 139 and 111 using Prime Factorization One way to find the LCM of 139 and 111 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 139? What are the Factors of 111? Here is the prime factorization of 139: 13 9 1 139^1 13 9 1 And this is the prime factorization of 111: 3 1 × 3 7 1 3^1 × 37^1 3 1 × 3 7 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: 139, 3, 37 3 1 × 3 7 1 × 13 9 1 = 15429 3^1 × 37^1 × 139^1 = 15429 3 1 × 3 7 1 × 13 9 1 = 15429 Through this we see that the LCM of 139 and 111 is 15429. How to Find the LCM of 139 and 111 by Listing Common Multiples The first step to this method of finding the Least Common Multiple of 139 and 111 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, 139 and 111: What are the Multiples of 139? What are the Multiples of 111? Let’s take a look at the first 10 multiples for each of these numbers, 139 and 111: First 10 Multiples of 139: 139, 278, 417, 556, 695, 834, 973, 1112, 1251, 1390 First 10 Multiples of 111: 111, 222, 333, 444, 555, 666, 777, 888, 999, 1110 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 139 and 111 are 15429, 30858, 46287. Because 15429 is the smallest, it is the least common multiple. The LCM of 139 and 111 is 15429. Find the LCM of Other Number Pairs Want more practice? Try some of these other LCM problems: What is the LCM of 115 and 46? What is the LCM of 141 and 123? What is the LCM of 80 and 56? What is the LCM of 77 and 101? What is the LCM of 21 and 24?