--- id: 5900f3b61000cf542c50fec8 challengeType: 5 title: 'Problem 73: Counting fractions in a range' videoUrl: '' localeTitle: 问题73：计算范围内的分数 --- ## 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>euler73()</code> should return 7295372. testString: 'assert.strictEqual(euler73(), 7295372, "<code>euler73()</code> should return 7295372.");'

挑战种子

 function euler73() { // Good luck! return true; } euler73();

解

 // solution required

## Instructions

## Tests

```yml tests: - text: euler73()应该返回7295372。 testString: 'assert.strictEqual(euler73(), 7295372, "euler73() should return 7295372.");' ```

## Challenge Seed

```js function euler73() { // Good luck! return true; } euler73(); ```

## Solution

```js // solution required ```