# What is The LCM of 18 and 30?

LCM of 18 and 30 is the least number which 18 and 30 divide exactly.

## Answer: LCM of 18 and 30 is 90

## Explanation:

Least common multiple (LCM ) is the smallest number which is exactly divisible by the given numbers.

We can find the LCM of the numbers in many ways the commonly used methods are listed below.

### LCM of 18 and 30 by Listing Method

In this method, we list the first few multiples of 18 and 30 and identify the common multiples.

The common multiple having the least value is the LCM of 18 and 30

### LCM of 18 and 30 by Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF (a,b)

The Greatest common factor(GCF) of (18,30)=6

Therefore

LCM of 18 and 30 = (18 ×30)/ 6

= 540/6 = 90

LCM of 18 and 30 = 90