2018-09-30 22:01:58 +00:00
|
|
|
---
|
|
|
|
id: 5900f42f1000cf542c50ff41
|
|
|
|
challengeType: 5
|
|
|
|
title: 'Problem 193: Squarefree Numbers'
|
|
|
|
---
|
|
|
|
|
|
|
|
## Description
|
|
|
|
<section id='description'>
|
|
|
|
A positive integer n is called squarefree, if no square of a prime divides n, thus 1, 2, 3, 5, 6, 7, 10, 11 are squarefree, but not 4, 8, 9, 12.
|
|
|
|
|
|
|
|
How many squarefree numbers are there below 250?
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Instructions
|
|
|
|
<section id='instructions'>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Tests
|
|
|
|
<section id='tests'>
|
|
|
|
|
|
|
|
```yml
|
2018-10-04 13:37:37 +00:00
|
|
|
tests:
|
|
|
|
- text: <code>euler193()</code> should return 684465067343069.
|
2018-10-08 00:01:53 +00:00
|
|
|
testString: 'assert.strictEqual(euler193(), 684465067343069, "<code>euler193()</code> should return 684465067343069.");'
|
2018-09-30 22:01:58 +00:00
|
|
|
|
|
|
|
```
|
|
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Challenge Seed
|
|
|
|
<section id='challengeSeed'>
|
|
|
|
|
|
|
|
<div id='js-seed'>
|
|
|
|
|
|
|
|
```js
|
|
|
|
function euler193() {
|
|
|
|
// Good luck!
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
euler193();
|
|
|
|
```
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</section>
|
|
|
|
|
|
|
|
## Solution
|
|
|
|
<section id='solution'>
|
|
|
|
|
|
|
|
```js
|
|
|
|
// solution required
|
|
|
|
```
|
|
|
|
</section>
|