56 lines
1.1 KiB
Markdown
56 lines
1.1 KiB
Markdown
---
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id: 5900f5471000cf542c510059
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challengeType: 5
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title: 'Problem 474: Last digits of divisors'
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videoUrl: ''
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localeTitle: 问题474:除数的最后数字
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---
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## Description
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<section id="description">对于正整数n和数字d,我们将F(n,d)定义为n的除数的数,其最后的数字等于d。例如,F(84,4)= 3.在84的除数中(1,2,3,4,6,7,12,14,21,28,42,84),其中三个(4,14) ,84)有最后一位数字4。 <p>我们还可以验证F(12!,12)= 11和F(50!,123)= 17888。 </p><p>找到F(106!,65432)modulo(1016 + 61)。 </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>euler474()</code>应该返回9690646731515010。
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testString: 'assert.strictEqual(euler474(), 9690646731515010, "<code>euler474()</code> should return 9690646731515010.");'
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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 euler474() {
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// Good luck!
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return true;
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}
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euler474();
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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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