# Sum Of Multiples

Given a number, find the sum of all the unique multiples of particular numbers up to
but not including that number.

If we list all the natural numbers below 20 that are multiples of 3 or 5,
we get 3, 5, 6, 9, 10, 12, 15, and 18.

The sum of these multiples is 78.

* * * *

For installation and learning resources, refer to the [exercism help page][].

[exercism help page]: http://exercism.io/languages/lfe

To run the provided tests, you will need `make`.
Open a terminal window and run the following from the exercise directory:

```sh
make test
```

You should now be able to see the results of the test suite for the exercise.

## Source

A variation on Problem 1 at Project Euler [http://projecteuler.net/problem=1](http://projecteuler.net/problem=1)

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.