# Log10()

Calculates the logarithm of number, to base 10.

```
Log10( number=number );
```

**Returns:** number

# Arguments

| Argument | Type | Required | Description | Default |
|----------|------|----------|-------------|---------|
| number | number | Yes | Positive real number for which to calculate the logarithm |  |

# Examples

The following code example will output an example number returned from the log10() function.

```cfml
<cfoutput>#log10(10)#</cfoutput>

```







# Categories

[Numbers](../../categories/number.md), [Math](../../categories/math.md)

# See Also

[numeric.log10()](../objects/numeric/log10.md)