---
id: 5900f4671000cf542c50ff79
challengeType: 5
videoUrl: ''
title: 问题249：Prime子集总和
---

## Description
<section id="description">令S = {2,3,5，...，4999}为小于5000的素数集。求出S的子集数，其元素之和为素数。输入最右边的16位数字作为答案。 </section>

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

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler249()</code>应该返回9275262564250418。
    testString: assert.strictEqual(euler249(), 9275262564250418);

```

</section>

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

<div id='js-seed'>

```js
function euler249() {
  // Good luck!
  return true;
}

euler249();

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```

/section>