freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-146-investigating-a-prime-pattern.english.md

---
id: 5900f3fe1000cf542c50ff11
challengeType: 5
title: 'Problem 146: Investigating a Prime Pattern'
forumTopicId: 301775
---

## Description
<section id='description'>
The smallest positive integer n for which the numbers n2+1, n2+3, n2+7, n2+9, n2+13, and n2+27 are consecutive primes is 10. The sum of all such integers n below one-million is 1242490.

What is the sum of all such integers n below 150 million?
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler146()</code> should return 676333270.
    testString: assert.strictEqual(euler146(), 676333270);

```

</section>

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

<div id='js-seed'>

```js
function euler146() {
  // Good luck!
  return true;
}

euler146();
```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```

</section>