E-Quest #13

Adding /4 to the official Facebook URL “www.facebook.com” will redirect you to the Facebook profile of Mark Zuckerberg, the Founder of Facebook. Each of the users of Facebook are given a specific ID, which locates the specific profile page of the user. Since Mark Zuckerberg was the fourth user of the Facebook app, he was given the ID as the number 4. Thus, the first Facebook user had the ID #4, which is Zuckerberg himself, while the ID #5 redirects to the Facebook profile page of Chris Hughes, the other co-founder of Facebook.