56 lines
1.1 KiB
Markdown
56 lines
1.1 KiB
Markdown
---
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id: 5900f4491000cf542c50ff5c
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challengeType: 5
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videoUrl: ''
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title: 问题221：亚历山大整数
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---
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## Description
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<section id="description">如果存在整数p，q，r，我们将调用正整数A和“亚历山大整数”，这样： <pre> <code> A = p · q · r and 1A</code> </pre><p> = </p><pre> <code> 1p</code> </pre><p> + </p><pre> <code> 1q</code> </pre><p> + </p><pre> <code> 1r</code> </pre><p>例如，630是亚历山大整数（p = 5，q = -7，r = -18）。实际上，630是第6个亚历山大整数，前6个亚历山大整数是：6,42,120,156,420和630。 </p><p>找到第150000个亚历山大整数。 </p></section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler221()</code>应该返回1884161251122450。
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testString: assert.strictEqual(euler221(), 1884161251122450);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler221() {
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// Good luck!
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return true;
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}
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euler221();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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/section>
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