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 33,874 articles since December 5, 2008. If you're fascinated by numbers like godhathor or Rayo's number, why not help us out? We encourage you to edit! As of December 5, 2024, Googology Wiki is now 16 years old and going strong!
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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 and functions
Also, be sure to check out the links below.
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Article Count Progress
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GoogolNews™
- April 1, 2025: Happy April Fool's Day!
- March 11, 2025: We made the 33,333rd article, that's (almost) a third to a lakh! The article creation blowout has been completely stalled.
- March 8, 2025: A 33,000th article was finally made, 2 weeks after the previous milestone!
- February 22, 2025: We made the 32,000th article!
- February 20, 2025: We made the 31,416th article, that's \(\lceil \pi\times 10000\rceil\)!
- February 16, 2025: 6 days after the last milestone, we've hit the 31,000th article!
- February 10, 2025: We celebrated a major milestone with the 30,000th article, 2 days after the previous milestone!!!
- February 8, 2025: A 29,000th article was made!
- February 2, 2025: In the midst of the article creation blowout, a 28,000th article was made!
- January 28, 2025: We managed to get to the 27,000th article! The article creation blowout territory continues…
- January 22, 2025: Malay Googology Wiki https://googologi.fandom.com/ms/wiki/Wikia_Googologi has been launched on Fandom.
- January 21, 2025: We managed to reach the 26,000th article!
- January 14, 2025: Here's a HUGE milestone! The 25,000th article, that's quarter to a lakh!
- January 13, 2025: 24,000th article after just a single day from the previous milestone! We're near a big milestone!
- January 12, 2025: We've hit the 23,000th article! The article creation blowout territory began!
- January 10, 2025: We made into the 22,222nd article!
- January 8, 2025: We reached the 22,000th article!
- January 7, 2025: Fandom announced that Googology Wiki would be migrated to MediaWiki 1.43 by April.
- January 1, 2025: Happy New Year, 2025!
Links
This is a compilation of websites that may be of interest to large number enthusiasts.
- For beginners
- What is googology? Genspark (AI) collected and summarized information on googology. Recommended for beginners to get some background information.
- 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
- 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