Q:

What is the LCM of 113 and 47?

Accepted Solution

A:
Solution: The LCM of 113 and 47 is 5311 Methods How to find the LCM of 113 and 47 using Prime Factorization One way to find the LCM of 113 and 47 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 113? What are the Factors of 47? Here is the prime factorization of 113: 11 3 1 113^1 11 3 1 And this is the prime factorization of 47: 4 7 1 47^1 4 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: 113, 47 4 7 1 × 11 3 1 = 5311 47^1 × 113^1 = 5311 4 7 1 × 11 3 1 = 5311 Through this we see that the LCM of 113 and 47 is 5311. How to Find the LCM of 113 and 47 by Listing Common Multiples The first step to this method of finding the Least Common Multiple of 113 and 47 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, 113 and 47: What are the Multiples of 113? What are the Multiples of 47? Let’s take a look at the first 10 multiples for each of these numbers, 113 and 47: First 10 Multiples of 113: 113, 226, 339, 452, 565, 678, 791, 904, 1017, 1130 First 10 Multiples of 47: 47, 94, 141, 188, 235, 282, 329, 376, 423, 470 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 113 and 47 are 5311, 10622, 15933. Because 5311 is the smallest, it is the least common multiple. The LCM of 113 and 47 is 5311. Find the LCM of Other Number Pairs Want more practice? Try some of these other LCM problems: What is the LCM of 77 and 25? What is the LCM of 121 and 47? What is the LCM of 75 and 149? What is the LCM of 16 and 37? What is the LCM of 72 and 108?