@@ -13,6 +13,7 @@ All of these examples are from FreeCodeCamp's [course](https://www.freecodecamp.
1313- [ Basic Algorithm Scripting] ( #basic-algorithm-scripting )
1414 - [ 1. Convert Celsius to Fahrenheit] ( #1-convert-celsius-to-fahrenheit )
1515 - [ 2. Reverse a String] ( #2-reverse-a-string )
16+ - [ 3. Factorialize a Number] ( #3-factorialize-a-number )
1617
1718## Basic Algorithm Scripting
1819
@@ -72,4 +73,49 @@ function reverseString(str) {
7273
7374reverseString("hello");
7475
76+ ```
77+ 78+ ### 3. Factorialize a Number
79+ 80+ ### Difficulty: Beginner
81+ 82+ Return the factorial of the provided integer.
83+ 84+ If the integer is represented with the letter n, a factorial is the product of all positive integers less than or equal to n.
85+ 86+ Factorials are often represented with the shorthand notation n!
87+ 88+ For example: 5! = 1 _ 2 _ 3 _ 4 _ 5 = 120
89+ 90+ Only integers greater than or equal to zero will be supplied to the function.
91+ 92+ ---
93+ 94+ ### Solution 1
95+ 96+ ```
97+ function factorialize(num) {
98+ if (num === 0) {
99+ return 1;
100+ } else return num * factorialize(num - 1);
101+ }
102+
103+ factorialize(5);
104+
105+ ```
106+ 107+ ### Solution 2
108+ 109+ ```
110+ function factorialize(num) {
111+ let factorializedNumber = 1;
112+ for (let i = 2; i <= num; i++) {
113+ factorializedNumber *= i;
114+ }
115+ return factorializedNumber;
116+ }
117+
118+ factorialize(5);
119+
120+
75121```
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