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---
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id: 5900f48f1000cf542c50ffa2
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challengeType: 5
title: 'Problem 291: Panaitopol Primes'
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videoUrl: ''
localeTitle: 'Problema 291: Panaitopol Primes'
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---
## Description
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< 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 >
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## Instructions
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< section id = "instructions" >
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< / 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();
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```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
// solution required
```
< / section >