66 lines
852 B
Markdown
66 lines
852 B
Markdown
---
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id: 5900f4ae1000cf542c50ffbf
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challengeType: 5
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videoUrl: ''
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title: 问题320：阶乘被整数整除
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---
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## Description
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<section id="description">
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令N（i）是最小的整数n，这样n！ 被（i！）整除1234567890
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设S（u）= ∑N（i）且10≤i≤u。
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S（1000）= 614538266565663。
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找出S（1 000 000）mod 1018。
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</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>euler320()</code>应该返回278157919195482660。
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testString: assert.strictEqual(euler320(), 278157919195482660);
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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 euler320() {
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// Good luck!
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return true;
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}
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euler320();
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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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