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Googology Wiki is an online encyclopedia and community dedicated to large numbers.

Welcome to the Internet's most comprehensive database of large numbers and fast-growing functions. We have made 18,836 articles since December 5, 2008. If you're fascinated by numbers like millillion or dimensoldexbitetrexthrex, why not help us out? We encourage you to edit! As of December 5, 2021, Googology Wiki is now 13 years old and going strong!

(Googology in other languages: Česky · Deutsch · Español · Français · 日本語 · Nederlands · Русский · 한국어 · 中文

New to big numbers?

Googology is the mathematical study of large numbers and fast-growing functions, as well as their properties and nomenclature. If you're interested in the subject, but you don't know where to start, try reading about some basic functions and ideas:

Short essay on the foundations and history of the field
Googol and googolplex
Tetration
Arrow notation
Graham's number
Introduction to Googology blog post by Sbiis Saibian
List of googolisms
List of functions

Also, be sure to check out the links below.

Around the Wiki

About
Policy
Guidelines for mainspace pages (related)
Googology_Wiki:Discussion
People
New pages · New images
Recent changes · Logs
Other wikis

Article Count Progress

We have reached 0% of our goal of 10¹⁰⁰ articles!

Quote

I have this vision of hoards of shadowy numbers lurking out there in the dark, beyond the small sphere of light cast by the candle of reason. They are whispering to each other; plotting who knows what. Perhaps they don't like us very much for capturing their smaller brethren with our minds. Or perhaps they just live uniquely numberish lifestyles, out there beyond our ken.

—Douglas Reay

Contributing

Got an idea or a creation to share? Sign up for Wikia if you haven't already, and create a blog post.

Found googology from a third-party source that isn't in the encyclopedia yet? Create a new article.

GoogolNews™

January 1, 2024: Happy New Year, 2024!
December 5, 2023: Googology Wiki turned 15 years old!
November 21, 2023: Ukrainian Googology Wiki in the name of Вікі Googology was linked to our community!
October 22, 2023: We reached our 18,000-th article! That's 90% of the way to the big 20,000!
June 29, 2023: We finally reached our 17,000-th article!
June 8, 2023: Googology Wiki underwent several technical issues related to the assets, so Fandom wikis wouldn't render properly for a brief period, including, but not limited to this wiki and Community Central. The issues were subsequently fixed in the later days. Sorry for an another mess!
May 11, 2023: We finally reached our 16,000-th article!
April 20, 2023: MediaWiki was upgraded to 1.39.
March 18, 2023: Yet another big milestone... We finally reached our 15,000th article!
February 28, 2023: Fandom announced that Googology Wiki would be migrated to MediaWiki 1.39 by April 20.
February 10, 2023: We reached the 14,000-th article!
January 14 – 20, 2023: We held the second admin election, and relieved C7X's admin and bureaucrat career!
January 12, 2023: We opened the second admin election, and is set to hold by January 14, 2023.
January 1, 2023: Happy New Year, 2023!

More news...

Links

This is a compilation of websites that may be of interest to large number enthusiasts.

For beginners

Large numbers increasing Douglas Shamlin Jr.'s video series about increasing numbers. It goes from zero to numbers described using Bird's array notation. Recommended for beginners.
One to Infinity: A Guide to the Finite by Sbiis Saibian/(user), a guided tour of googology and number systems. Recommended for beginners.
Large Numbers by Robert Munafo. Recommended for beginners.

Sites

Aarex Googology by Aarex Tiaokhiao/(user (inactive))
Big Number Central by Jonathan Bowers
Notable Properties of Specific Numbers by Robert Munafo
Super Huge Numbers (main site) by Chris Bird
Pointless Large Number Stuff by wiki user cookiefonster
Big Number Duel by Agustín Rayo
Hayden's Big Numbers by wiki user HaydenTheGoogologist2009
Pointless Googolplex Stuffs and ExE ultimate googolism generator by wiki user DeepLineMadom
AR Googol by wiki user ARsygo
Who Can Name the Bigger Number? by Scott Aaronson
Turing Machine Simulator by Anthony Morphett
CompactStar's Googology by wiki user CompactStar

Impossible Numbers by wiki user Antfarmerguys

Subreddits

r/googology
r/Scholar

Ordinals

Ordinal Explorer by wiki user Rgetar
An interactive diagram for ordinals up to \(\varepsilon_{\varepsilon_0}\)

Non-wiki googology links in other languages

大数入门 for those who know Chinese. Beware though, the article contains tons of mistakes.
Large Number in pixiv dictionary for those who know Japanese.

Miscellany

Googol Maps 2.0 (year - size) by wiki user Koteitan

@@ Line 5: / Line 5: @@
 '''Googology Wiki is an online encyclopedia and community dedicated to large numbers.'''
-Welcome to the Internet's most comprehensive database of large numbers and fast-growing functions. We have made '''[[Special:Allpages|{{NUMBEROFARTICLES}}]]''' articles since December 5, 2008. If you're fascinated by numbers like {{random number}} or {{random number|bla}}, why not help us out? We encourage you to edit! As of December 5, 2020, Googology Wiki is now 12 years old and going strong!
+Welcome to the Internet's most comprehensive database of large numbers and fast-growing functions. We have made '''[[Special:Allpages|{{NUMBEROFARTICLES}}]]''' articles since December 5, 2008. If you're fascinated by numbers like {{random number}} or {{random number|bla}}, why not help us out? We encourage you to edit! As of December 5, 2021, Googology Wiki is now 13 years old and going strong!
-<small>([[Googology Wiki:Sister wikis|Other languages]]: [[w:c:nl.grote-getallen|Nederlands]] {{*}} [[w:c:de.googologie|Deutsch]] {{*}} [[w:c:ja.googology|日本語]] {{*}} [[w:c:fr.googology|Français]] {{*}} [[w:c:zh.googology|中文]] {{*}} [[w:c:ru.googology|Русский]] {{*}} [[:cs:Googologie_Wiki|Česky]] {{*}} [[:w:c:es.googologia|Español]] {{*}} [[:w:c:ko.googology|한국어]])<br />
+<small>([[Googology Wiki:Sister wikis|Googology in other languages]]: [[:cs:|Česky]] {{*}} [[:de:|Deutsch]] {{*}} [[:es:|Español]] {{*}} [[:fr:|Français]] {{*}} [[:ja:|日本語]] {{*}} [[:nl:|Nederlands]] {{*}} [[:ru:|Русский]] {{*}} [[:w:c:ko.googology|한국어]] {{*}} [[:zh:|中文]]<br />
+</small>
-Talk to us on [http://webchat.freenode.net/?channels=%23%23googology Freenode IRC (##googology)]! (Or [[#chatbox-ctr|scroll down]].)</small>
 </div>
 {{HeadingB|New to big numbers?}}
-[[Googology]] is the mathematical study of large numbers, their properties, and their nomenclature. If you're interested in the subject, but you don't know where to start, try reading about some basic functions and ideas:
+[[Googology]] is the mathematical study of large numbers and fast-growing functions, as well as their properties and nomenclature. If you're interested in the subject, but you don't know where to start, try reading about some basic functions and ideas:
-* [[Googology#History|Short essay]] on the foundations and history of the field
+*[[Googology#History|Short essay]] on the foundations and history of the field
-* [[Googol]] and [[googolplex]]
+*[[Googol]] and [[googolplex]]
-* [[Tetration]]
+*[[Tetration]]
 * [[Arrow notation]]
-* [[Graham's number]]
+*[[Graham's number]]
-* [[User blog:Sbiis Saibian/Introduction to Googology|Introduction to Googology]] blog post by Sbiis Saibian
+*[[User blog:Sbiis Saibian/Introduction to Googology|Introduction to Googology]] blog post by Sbiis Saibian
-* [[List of googolisms]]
+*[[List of googolisms]]
-* [[List of functions]]
+*[[List of functions]]
 Also, be sure to check out the links below.
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 {{HeadingB|Around the Wiki}}
-* [[Project:About|About]]
+*[[Project:About|About]]
-* [[Project:Policy|Policy]]
+*[[Project:Policy|Policy]]
-* [[Googology_Wiki:Policy/Guidelines]] (related)
+*[[Googology_Wiki:Guideline|Guidelines for mainspace pages]] (related)
+*[[Googology_Wiki:Discussion]]
-* [[Special:ListUsers|People]]
-* [[Project:IRC|IRC]]
+*[[Special:ListUsers|People]]
+*[[Special:NewPages|New pages]] {{*}} [[Special:NewImages|New images]]
-* [[Project:Discord|Discord]]
-* [[Special:NewPages|New pages]] {{*}} [[Special:NewImages|New images]]
+*[[Special:RecentChanges|Recent changes]] {{*}} [[Special:Log|Logs]]
+*[[w:Wikia|Other wikis]]
-* [[Special:RecentChanges|Recent changes]] {{*}} [[Special:Log|Logs]]
-* [[w:Wikia|Other wikis]]
 {{HeadingB|Article Count Progress}}
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-</td></tr></table>
-<div id="chatbox-ctr"></div>
+__NOTOC__<!-- This removes the table of contents -->
-This isn't the only way to access the IRC channel, though! You should get yourself a proper client like [http://www.mirc.com/ mIRC] (Windows only) or [http://quassel-irc.org/ Quassel] (cross-platform).
-__NOTOC__ <!-- This removes the table of contents -->
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-[[de:Googologie Wiki]]
+[[de:]]
-[[nl:Grote getallen wiki]]
+[[nl:]]
-[[ja:巨大数研究Wiki]]
+[[ja:]]
-[[fr:Wiki_French_Googology]]
+[[fr:]]
-[[zh:大數學_維基]]
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-[[ru:Гугология_Вики]]
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-[[cs:Googologie Wiki]]
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