62 lines
1.6 KiB
Markdown
62 lines
1.6 KiB
Markdown
---
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id: 5900f3911000cf542c50fea4
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challengeType: 5
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title: 'Problem 37: Truncatable primes'
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videoUrl: ''
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localeTitle: 问题37：可截断的素数
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---
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## Description
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<section id="description"> 3797号有一个有趣的财产。作为素数本身，可以从左到右连续删除数字，并在每个阶段保持素数：3797,797,97和7.同样，我们可以从右到左工作：3797,379,37和3。找到从左到右和从右到左都可截断的唯一n（8 <= n <= 11）个素数之和。注意：2,3,5和7不被认为是可截断的素数。 </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>truncatablePrimes(8)</code>应该返回1986年。
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testString: 'assert(truncatablePrimes(8) == 1986, "<code>truncatablePrimes(8)</code> should return 1986.");'
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- text: <code>truncatablePrimes(9)</code>应该返回5123。
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testString: 'assert(truncatablePrimes(9) == 5123, "<code>truncatablePrimes(9)</code> should return 5123.");'
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- text: <code>truncatablePrimes(10)</code>应该返回8920。
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testString: 'assert(truncatablePrimes(10) == 8920, "<code>truncatablePrimes(10)</code> should return 8920.");'
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- text: <code>truncatablePrimes(11)</code>应该返回748317。
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testString: 'assert(truncatablePrimes(11) == 748317, "<code>truncatablePrimes(11)</code> should return 748317.");'
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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 truncatablePrimes(n) {
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// Good luck!
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return n;
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}
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truncatablePrimes(11);
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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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