--- id: 5900f3b31000cf542c50fec6 challengeType: 5 title: 'Problem 71: Ordered fractions' videoUrl: '' localeTitle: 问题71：有序分数 --- ## Description

考虑分数，n / d，其中n和d是正整数。如果是

说明

测试

 tests: - text: <code>euler71()</code> should return 428570. testString: 'assert.strictEqual(euler71(), 428570, "<code>euler71()</code> should return 428570.");'

挑战种子

 function euler71() { // Good luck! return true; } euler71();

解

 // solution required

## Instructions

## Tests

```yml tests: - text: euler71()应返回428570。 testString: 'assert.strictEqual(euler71(), 428570, "euler71() should return 428570.");' ```

## Challenge Seed

```js function euler71() { // Good luck! return true; } euler71(); ```

## Solution

```js // solution required ```