chore(i8n,learn): processed translations

curriculum/challenges/chinese/10-coding-interview-prep/rosetta-code/factorial.md

@@ -1,42 +1,56 @@
 ---
 id: 597b2b2a2702b44414742771
-title: 阶乘
+title: Factorial
 challengeType: 5
-videoUrl: ''
+forumTopicId: 302263
 dashedName: factorial
 ---
 
 # --description--
 
-<p>编写一个函数来返回一个数字的阶乘。 </p><p>一个数字的因子由下式给出： </p> N！ = n \*（n-1）\*（n-2）\* ..... \* 1 <p>例如：3！ = 3 * 2 * 1 = 6 4！ = 4 * 3 * 2 * 1 = 24 </p><p>注意：0！ = 1 </p>
+Write a function to return the factorial of a number.
+
+Factorial of a number is given by:
+
+<pre><big>n! = n * (n-1) * (n-2) * ..... * 1</big>
+</pre>
+
+For example:
+
+<ul>
+  <li><code>3! = 3 * 2 * 1 = 6</code></li>
+  <li><code>4! = 4 * 3 * 2 * 1 = 24</code></li>
+</ul>
+
+**Note:** `0! = 1`
 
 # --hints--
 
-`factorial`是一种功能。
+`factorial` should be a function.
 
 ```js
 assert(typeof factorial === 'function');
 ```
 
-`factorial(2)`应该返回一个数字。
+`factorial(2)` should return a number.
 
 ```js
 assert(typeof factorial(2) === 'number');
 ```
 
-`factorial(3)`应该返回6.“）
+`factorial(3)` should return 6.
 
 ```js
 assert.equal(factorial(3), 6);
 ```
 
-`factorial(3)`应返回120.“）
+`factorial(5)` should return 120.
 
 ```js
 assert.equal(factorial(5), 120);
 ```
 
-`factorial(3)`应返回3,628,800。“）
+`factorial(10)` should return 3,628,800.
 
 ```js
 assert.equal(factorial(10), 3628800);