---
id: 5900f41c1000cf542c50ff2e
challengeType: 5
title: 'Problem 175: Fractions involving the number of different ways a number can be expressed as a sum of powers of 2'
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
```yml
tests:
- text: ''
testString: 'assert.strictEqual(euler175(), 1, 13717420, 8, "euler175() should return 1, 13717420, 8.");'
```
## Challenge Seed
```js
function euler175() {
// Good luck!
return true;
}
euler175();
```