61460c8601
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57 lines
995 B
Markdown
57 lines
995 B
Markdown
---
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id: 5900f4c31000cf542c50ffd5
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challengeType: 5
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title: 'Problem 342: The totient of a square is a cube'
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videoUrl: ''
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localeTitle: 问题342：正方形的总数是一个立方体
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---
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## Description
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<section id="description">考虑数字50. 502 = 2500 = 22×54，因此φ（2500）= 2×4×53 = 8×53 = 23×53.1因此2500是正方形而φ（2500）是立方体。 <p>找到所有数字的总和n，1 <n <1010，使得φ（n2）是立方体。 </p><p> 1φ表示欧拉的函数。 </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>euler342()</code>应该返回5943040885644。
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testString: assert.strictEqual(euler342(), 5943040885644);
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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 euler342() {
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// Good luck!
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return true;
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}
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euler342();
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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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