## factor

`factor`

is used to list all prime factors of each integer number.

```
$ factor [NUMBER]...
```

will list every prime factor the the list of input numbers. The other main usage for `factor`

,

```
$ factor
```

with no command line arguments, input will be read from standard input.

Generally, use:

```
$ factor [NUMBER1] [NUMBER2]...
```

### Useful Options / Examples

There are very few options for factor. there are only two.

```
$ factor --help
```

will display a help file and exit.

```
$ factor --versions
```

will display version information and exit.