# What is the LCM of 1 and 5?

Least Common Multiple of 1 and 5 is the smallest number which divides both 1 and 5 exactly without a remainder.

## Answer: LCM of 1 and 5 is 5

For 1 and 5, the smallest number which would be perfectly divisible by them is their LCM which is 5.

## Explanation:

All natural numbers are the multiples of 1. So, 5 is also a multiple of 1. This means that the least common multiple of 1 and 5 is 5.

Let us use the listing the common factors method to find the LCM of 1 and 5

### LCM of 1 and 5 by Listing Method

List the first few multiples of 1 and 5 and find the common multiples.

- Multiples of 1 are 1, 2, 3, 4,
**5**, 6, 7,.... - Multiples of 5 are
**5**, 10, 15,....

The smallest among the common multiples is the LCM of 1 and 5, which in the above case we can see is 5. This means that the LCM of 1 and 5 is 5