---
id: 5900f48f1000cf542c50ffa2
challengeType: 5
title: 'Problem 291: Panaitopol Primes'
videoUrl: ''
localeTitle: 'Problema 291: Panaitopol Primes'
---

## Description
<section id="description"> Un número primo p se llama un primo de Panaitopol si para algunos enteros positivos e y. <p> Encuentra cuántos primos de Panaitopol son menores que 5 × 1015. </p></section>

## Instructions
<section id="instructions">
</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler291()</code> debe devolver 4037526.
    testString: 'assert.strictEqual(euler291(), 4037526, "<code>euler291()</code> should return 4037526.");'

```

</section>

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

<div id='js-seed'>

```js
function euler291() {
  // Good luck!
  return true;
}

euler291();

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```
</section>