69 lines
1.4 KiB
Markdown
69 lines
1.4 KiB
Markdown
---
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id: 5900f36f1000cf542c50fe82
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challengeType: 5
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videoUrl: ''
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title: 问题3：最大素数
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---
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## Description
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<section id="description">
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13195的主要因子是5、7、13和29。
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给定<code>数字</ code>的最大素数是多少？
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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>largestPrimeFactor(2)</code>应该返回2。
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testString: assert.strictEqual(largestPrimeFactor(2), 2);
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- text: <code>largestPrimeFactor(3)</code>应该返回3。
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testString: assert.strictEqual(largestPrimeFactor(3), 3);
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- text: <code>largestPrimeFactor(5)</code>应该返回5。
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testString: assert.strictEqual(largestPrimeFactor(5), 5);
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- text: <code>largestPrimeFactor(7)</code>应该返回7。
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testString: assert.strictEqual(largestPrimeFactor(7), 7);
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- text: <code>largestPrimeFactor(13195)</code>应该返回29。
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testString: assert.strictEqual(largestPrimeFactor(13195), 29);
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- text: <code>largestPrimeFactor(600851475143)</code>应该返回6857。
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testString: assert.strictEqual(largestPrimeFactor(600851475143), 6857);
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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 largestPrimeFactor(number) {
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// Good luck!
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return true;
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}
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largestPrimeFactor(13195);
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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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