Oops! Looks like you found a 404! Click here to go to the main page.

Unless you don't want to...*shifty eyes*...then you can listen to me blab about 404 and its...uhhh...mathematics...et cetera...

Ok! So! Let's start with...dun dun dun...HTTP 404! ...and its descriptions and stuff...
Q: What is HTTP 404, anyways?
A: Well...evidently, you're on a 404 page. So, it's...this.

Q: More specifically...?
A: Fine. I'll tell you. So...(prepare yourself)...404 is an HTTP status code! (Wow! Isn't that amazing?) When you visit a web page, your compy (computer, if you didn't realize yet) requests data from a server with HTTP (Hypertext Transfer Protocal. Get it? Uh-huh, I get it! Ahahahaha!). And guess what? (What?) Before you even get the webbie you're visiting...*suspenseful music*...the webbie's web server has sent you its HTTP headers! This contains the status code, BTW. In which the normal status code is 202 OK, but you don't see this...because...I know you can figure this out! I know you can! So I won't tell you!

Q: Awwwwww, pleaaaaaaaassssssse? *puppy eyes*
A: Gahhh! I can't stand those puppy eyes. Fine. Now you know that I go against my word too much. *very peeved* You made me peeved! That's not good for you! It's bad for your health! Anyhow...*clears throat*...because...since everything's "OK" (Ahahaha, I know you got the joke!), you just happen to get the contents of the page. It's only when everything's not OK that you see the actual status code, in this case, 404. *points accusingly at you* You must have stumbled upon something not OK!

Q: Waiiit, but why exactly does it say 404? Not something else like 3.14 or something?
A: Because I told it to.

Q: ...
A: Hey! That's not a question! *stares intimidatingly*

Q: *intimidated* No, really? I mean...um...can you expand on your reason for telling it to say 404?
A: Isn't it obvious? I have reasons for everything! OooooOOOOooooOOOooooo! Meh. Whatever. Seeing as you can't figure that out for yourself, I'll tell you because I'm such a nice person. And don't cough like that...would you like a cough drop? *waits for you to stop coughing* Meh. So. The first 4 in 404 accuses you of doing something wrong. Which is probably the case, knowing you. (Please don't take any personal offense, had any been taken. Well, that would've been too late, but whatever.) Basically, it decided that you had a tyop in the URL or something of the sort. Maybe request a non-existant page...that exists only in your dreams! If you saw a 5 something something error before, that means that the error might be temporary, so if you refresh, the page might magically pop up! Like daisies! Or it might be a server-side problem.

Q: Huh? A server-side problem?
A: Hey! Don't interrupt! But then, I think you should know that. A server-side problem refers to problems in operations performed by the sever. Good enough explanation?

Q: Sure. I mean, yeah. Continue...?
A: It wasn't my fault that I broke off! (Disclaimer.) Anyways, the 0 just looks cool. Actually, more than that. Not only does the 0 look cool, it refers to a syntax (grammar and its related stuff, in case you didn't know) error, such as spelling! Which is very important and should have been studied in school, if you didn't study it. And then, since there's lots of 4-0-somethings out there, the last 4 just indicates the kind of 4-0-something error it is: a 404!

Q: Since you're so smart and everything, did you invent 404? Or status codes in general? *looks inquisitvely*
A: I'm flattered, but unfortunately, no. Status codes were established wayyy back (well not really, but whatever) in 1992 by the W3C (or World Wide Web Consortium) as part of the HTTP 0.9 spec. The same person who invented the web in 1990 (Wow! That's not that long ago!) and first web browser defined the status codes. So we should all thank him for inventing the web! *claps happily* Hey! Join in my cheering! *cheers*

Q: Yayz! *claps and cheers* Who is this genius, anyways?
A: Are you saying I'm not one? *suspicious look* Jay kay~ Jeez. Can't you take a joke? (Well, maybe, that's not a joke. You'll never know...oooOOOoooooOOOooooOOOoo!) Anyways, he's called Tim Berners-Lee. He based HTTP status codes on FTP status codes, which were already working quite well by 1990. The official FTP spec was dated to be created in 1985, though it had been in use much longer. *shifty eyes* I wonder why...

Since I'm too lazy to explain anything else about the HTTP status code 404, I'll move on the the number 404! *applauds*
I'm not going to pay attention to your questions now. (I'm going to pretend not to notice that offended look on your face which I know you're wearing. If you're not, my apologies. I hope you didn't take any personal offense. If you did, too bad. You're going to sit there and either listen to me explain about the number 404, or you can regret your choice of not going to the main page and sneak away, hoping that I won't notice...
So! The number 404's prime factorization is 22 ⋅ 1011. That means that 404 has (2 + 1)(1 + 1) = 6 factors, which are 1, 2, 4, 101, 202, and 404. Ordinally, it is 404th, or four hundred [and] fourth. As a Roman numeral, it is CDIV (hey, that looks pretty cool). It is equivalent to 1100101002, 1122223, 31044, 6248, and 19416. And since I decided that 101, as a number, is cooler than 404, I shall proceed to talk about 101.

Yay! It's 101 time!
I'm too lazy to calculate 101 in different bases, so you can figure that out yourself. I'm sure you're smart enough! (Take that as a compliment.) 101, like 404, is a palindromic number, which means it's the same backwards and forwards! Yay! It's the...you'll never guess (you know)...it's the 26st prime number! Which is really awesome! I don't know why though...but it is! It's the sum of five consecutive primes...15, 17, 19, 23, and 29. *claps* Hey! Why aren't you clapping? *peers at you* My apologies if you did. It has a nice divisibiliy rule too! Split the tested number into groups of four, starting from the right. That's east, by the way. Now add up the numbers you split it into. If its of the form ABAB, where A and B are digits, or of the form A0A, where A is a digit, then it is divisible! Tada!
Colliquially, 101 denotes the most basic level of something if its added as a suffix (at the end, in simpler terms, for those who don't have an acceptable vocabulary).
Also, I'm sure you've heard of Taipei 101. It's one of the world's tallest skyscrapers, and has 101 floors, hence the name "101". The Statue of Liberty stands 101 feet tall from base to torch. Quite remarkable, really. Oh, and have you ever heard of a book titled something like 101 Ways to and then some random blurb? ("Yep, I have," you say. Unless you haven't. THen you would be lying.) Books in Print say that more books come beginning with "101" than "100"...yayz!

Well, I told you about 101, and 404 is 101 ⋅ 4, I shoudl tell you about 4. And 4 is a cool number. Ish. Actually no. 4 is cooler than 101! Which makes 404 a cool number! *very happy*
Before I tell you anything about its properties and usage and stuff, I want to show you the history of 4's glyph itself:
Isn't that awesome? *takes a deep breath* Basically, at first these civilizations and such used lines to represent numbers but then but then too many lines aren't good so instead the Brahmin Indians put it into a cross and then the Sunga added a horizontal line on top because that looks better then Kshatrapa and Pallava evolved it more but then the speed of writing became kind of bad and then the Arab's 4 still had a cross but connected stuff, well the top and bottom and the right and left, for the sake of efficiency and since that's weird, the Europeans decided to drop the curve and made it more "rigidy" and yeaaaaa...
Oh you know composite numbers? The opposite of prime numbers? 4 is the first composite number! Yayz! And it's also the second square number...and the smallest squared prime, and the only even squared prime! And it's the smallest composite that is the sum of its prime factors. And then you know what's really cool? 2 + 2 = 2 ⋅ 2 = 22 = 4.
Note that a four-sided plane figure is called a quadrilateral, and if it's regular, it's a square! A circle divided into 4 sections makes right angles, so 4 is the base number of plane mathematics! So there's 4 cardinal directions and 4 seasons.
A regular four-sided figure is called a tetrahedron. It has 4 faces that are equilateral triangles. And it's the first positive non-Fibonacci number.

I'm too lazy to talk about anything else. Bye.
If you didn't regret your choice, I'm proud of you. Ehehehehehe!