## Purpose

Get the base-10 logarithm of a number

## Return value

The logarithm

## Syntax

`=LOG10(number)`

*number*- Number for which you want the logarithm.

## How to use

The LOG function allows you to get the base 10 logarithm of a positive number. For example:

```
=LOG10(100) // returns 2
=LOG10(1000) // returns 3
=LOG10(0.1) // returns -1
```