Files
freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-193-squarefree-numbers.md
Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

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639 B
Markdown

---
id: 5900f42f1000cf542c50ff41
title: 'Problem 193: Squarefree Numbers'
challengeType: 5
forumTopicId: 301831
dashedName: problem-193-squarefree-numbers
---
# --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?
# --hints--
`euler193()` should return 684465067343069.
```js
assert.strictEqual(euler193(), 684465067343069);
```
# --seed--
## --seed-contents--
```js
function euler193() {
return true;
}
euler193();
```
# --solutions--
```js
// solution required
```