Q:

What is the LCM of 126 and 62?

Accepted Solution

A:
Solution: The LCM of 126 and 62 is 3906 Methods How to find the LCM of 126 and 62 using Prime Factorization One way to find the LCM of 126 and 62 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 126? What are the Factors of 62? Here is the prime factorization of 126: 2 1 × 3 2 × 7 1 2^1 × 3^2 × 7^1 2 1 × 3 2 × 7 1 And this is the prime factorization of 62: 2 1 × 3 1 1 2^1 × 31^1 2 1 × 3 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: 2, 3, 7, 31 2 1 × 3 2 × 7 1 × 3 1 1 = 3906 2^1 × 3^2 × 7^1 × 31^1 = 3906 2 1 × 3 2 × 7 1 × 3 1 1 = 3906 Through this we see that the LCM of 126 and 62 is 3906. How to Find the LCM of 126 and 62 by Listing Common Multiples The first step to this method of finding the Least Common Multiple of 126 and 62 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, 126 and 62: What are the Multiples of 126? What are the Multiples of 62? Let’s take a look at the first 10 multiples for each of these numbers, 126 and 62: First 10 Multiples of 126: 126, 252, 378, 504, 630, 756, 882, 1008, 1134, 1260 First 10 Multiples of 62: 62, 124, 186, 248, 310, 372, 434, 496, 558, 620 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 126 and 62 are 3906, 7812, 11718. Because 3906 is the smallest, it is the least common multiple. The LCM of 126 and 62 is 3906. Find the LCM of Other Number Pairs Want more practice? Try some of these other LCM problems: What is the LCM of 97 and 105? What is the LCM of 95 and 46? What is the LCM of 29 and 85? What is the LCM of 128 and 93? What is the LCM of 127 and 125?