# What is The LCM of 40, 42, and 45?

LCM of 40, 42, and 45 is the least number which is exactly divisible by 40, 42, and 45.

## Answer: LCM of 40, 42, and 45 is 2520

## Explanation:

The least common multiple is the smallest number which the given numbers divide exactly. In other words, it the least among all the common multiples of the given numbers.

### Calculate LCM of 40, 42, and 45 by Common Division Method

It is a 2-step process,

- We simultaneously divide the given numbers with prime numbers and
- Terminate the process when we don't have a prime number to divide the given numbers.

LCM of 40, 42, and 45 is 2520. It is the least possible number that is exactly divisible by all the given three numbers simultaneously.