---
id: 5900f4291000cf542c50ff3b
challengeType: 5
title: 'Problem 188: The hyperexponentiation of a number'
videoUrl: ''
localeTitle: 问题188：数字的过度扩展
---

## Description
<section id="description">由↑^ b或ba表示的正整数b的数字a的过度增强或分解通过以下方式递归地定义：a↑↑1 = a，a↑↑（k + 1）= a（a↑↑k ）。 <p>因此我们有例如3↑↑2 = 33 = 27，因此3↑↑3 = 327 = 7625597484987和3↑↑4大致是103.6383346400240996 * 10 ^ 12。查找1777↑↑1855的最后8位数字。 </p></section>

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

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler188()</code>应该返回95962097。
    testString: 'assert.strictEqual(euler188(), 95962097, "<code>euler188()</code> should return 95962097.");'

```

</section>

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

<div id='js-seed'>

```js
function euler188() {
  // Good luck!
  return true;
}

euler188();

```

</div>



</section>

## Solution
<section id='solution'>

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