What is the Least Common Multiple of 2 and 5?

The LCM (least common multiple) of the numbers 2 and 5 is450

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On this page we are calculatiog the Least Common Multiple of 2 and 5.

How to find the Least Common Multiple of 2 and 5?

On this page below, we'll use thePrime Factorisation, and theList of Multiplesmethod to find out the LCM of 12 and 11.

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LCM

Least Common Multiple

The LCM of 2 and 5 is

450

https://lcm-gcf.com

Follow the steps below, and let's calculate the LCM of 2 and 5.

Method 1 - Prime factorization

Step 1: Create a list of all the prime factors of the numbers 2 and 5:

Prime factors of 18

The prime factors of 18 are 3 and 2. Prime factorization of 18 in exponential form is:
18 =21x32

Prime factor of 25

The prime factor of 25 is 5 . Prime factorization of 25 in exponential form is:
25 =52

Step 2: Identify the highest power of each prime number from the above boxes:

Method 2 - List of Multiples

Find and list multiples of each number until the first common multiple is found. This is the lowest common multiple.

Multiples of 18:

1836547290108126144162180198216234252270288306324342360378396414432450

Multiples of 25:

255075100125150175200225250275300325350375400425450

Therefore,

LCM(18,25) = 450