freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-454-diophantine-rec...

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---
id: 5900f5331000cf542c510045
title: 问题454丢番图倒数III
challengeType: 5
videoUrl: ''
dashedName: problem-454-diophantine-reciprocals-iii
---
# --description--
在下面的等式中xy和n是正整数。
1x + 1y = 1n
对于极限L我们将FL定义为满足x <y≤L的解的数量。
我们可以验证F15= 4和F1000= 1069.找到F1012
# --hints--
`euler454()`应该返回5435004633092。
```js
assert.strictEqual(euler454(), 5435004633092);
```
# --seed--
## --seed-contents--
```js
function euler454() {
return true;
}
euler454();
```
# --solutions--
```js
// solution required
```