freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-85-counting-rectangles.english.md

---
id: 5900f3c11000cf542c50fed4
challengeType: 5
title: 'Problem 85: Counting rectangles'
forumTopicId: 302199
---

## Description
<section id='description'>
By counting carefully it can be seen that a rectangular grid measuring 3 by 2 contains eighteen rectangles:


Although there exists no rectangular grid that contains exactly two million rectangles, find the area of the grid with the nearest solution.
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler85()</code> should return 2772.
    testString: assert.strictEqual(euler85(), 2772);

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function euler85() {
  // Good luck!
  return true;
}

euler85();
```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```

</section>