freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-355-maximal-coprime...

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---
id: 5900f4d01000cf542c50ffe2
title: 问题355最大互质子集
challengeType: 5
videoUrl: ''
---
# --description--
将Con定义为来自{1,2...n}的一组相互共元素的最大可能和。例如Co10是30并且在子集{1,5,7,8,9}上达到最大值。
给出Co30= 193和Co100= 1356。
找到Co200000
# --hints--
`euler355()`应返回1726545007。
```js
assert.strictEqual(euler355(), 1726545007);
```
# --solutions--