65 lines
1.7 KiB
Markdown
65 lines
1.7 KiB
Markdown
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---
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id: 5
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localeTitle: 5900f3911000cf542c50fea4
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challengeType: 5
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title: 'Problem 37: Truncatable primes'
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---
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## Description
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<section id='description'>
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El número 3797 tiene una propiedad interesante. Al ser primo, es posible eliminar continuamente dígitos de izquierda a derecha y permanecer primo en cada etapa: 3797, 797, 97 y 7. Del mismo modo, podemos trabajar de derecha a izquierda: 3797, 379, 37 y 3.
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Encuentre la suma de los únicos n primarios n (8 <= n <= 11) que se pueden truncar de izquierda a derecha y de derecha a izquierda.
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NOTA: 2, 3, 5 y 7 no se consideran primos que se pueden cortar.
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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>truncatablePrimes(8)</code> debe devolver 1986.
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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> debe devolver 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> debe devolver 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> debe devolver 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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