64 lines
1.2 KiB
Markdown
64 lines
1.2 KiB
Markdown
---
|
|
id: 5900f3a81000cf542c50febb
|
|
challengeType: 5
|
|
title: 'Problem 60: Prime pair sets'
|
|
forumTopicId: 302172
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
|
|
The primes 3, 7, 109, and 673, are quite remarkable. By taking any two primes and concatenating them in any order the result will always be prime. For example, taking 7 and 109, both 7109 and 1097 are prime. The sum of these four primes, 792, represents the lowest sum for a set of four primes with this property.
|
|
|
|
Find the lowest sum for a set of five primes for which any two primes concatenate to produce another prime.
|
|
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: <code>primePairSets()</code> should return a number.
|
|
testString: assert(typeof primePairSets() === 'number');
|
|
- text: <code>primePairSets()</code> should return 26033.
|
|
testString: assert.strictEqual(primePairSets(), 26033);
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
function primePairSets() {
|
|
|
|
return true;
|
|
}
|
|
|
|
primePairSets();
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
|
|
</section>
|