freeCodeCamp/curriculum/challenges/chinese/08-coding-interview-prep/project-euler/problem-29-distinct-powers....

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---
id: 5900f3891000cf542c50fe9c
challengeType: 5
title: 'Problem 29: Distinct powers'
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
<section id='tests'>
```yml
tests:
- text: ''
testString: 'assert.strictEqual(distinctPowers(15), 177, "<code>distinctPowers(15)</code> should return 177.");'
- text: ''
testString: 'assert.strictEqual(distinctPowers(20), 324, "<code>distinctPowers(20)</code> should return 324.");'
- text: ''
testString: 'assert.strictEqual(distinctPowers(25), 519, "<code>distinctPowers(25)</code> should return 519.");'
- text: ''
testString: 'assert.strictEqual(distinctPowers(30), 755, "<code>distinctPowers(30)</code> should return 755.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function distinctPowers(n) {
// Good luck!
return n;
}
distinctPowers(30);
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>