freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-131-prime-cube-part...

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---
id: 5900f3ef1000cf542c50ff02
title: 'Problem 131: Prime cube partnership'
challengeType: 5
forumTopicId: 301759
dashedName: problem-131-prime-cube-partnership
---
# --description--
There are some prime values, p, for which there exists a positive integer, n, such that the expression n3 + n2p is a perfect cube.
For example, when p = 19, 83 + 82×19 = 123.
What is perhaps most surprising is that for each prime with this property the value of n is unique, and there are only four such primes below one-hundred.
How many primes below one million have this remarkable property?
# --hints--
`euler131()` should return 173.
```js
assert.strictEqual(euler131(), 173);
```
# --seed--
## --seed-contents--
```js
function euler131() {
return true;
}
euler131();
```
# --solutions--
```js
// solution required
```