What is the Least Common Multiple of 2 and 5?

The LCM (least common multiple) of the numbers 2 and 5 is18

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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

18

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 factor of 2

The prime factor of 2 is 2 . Prime factorization of 2 in exponential form is:
2 =21

Prime factor of 9

The prime factor of 9 is 3 . Prime factorization of 9 in exponential form is:
9 =32

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 2:

24681012141618

Multiples of 9:

918

Therefore,

LCM(2,9) = 18