100 (hundred or one hundred) is a positive integer following 99 and preceding 101.[1] It is significant as the smallest three-digit number in base 10, since it is 102. It is an even composite number.
The term came from Old English hundred,[2] from Proto-Germanic hunda- (meaning "one hundred") and rath (meaning "number"). Before the 18th century, the word "hundred" had varied meanings, one of which was 120.
In other languages
| Language(s) | Name |
|---|---|
| Afrikaans, Dutch | honderd |
| Albanian | qind |
| Asturian | cien, cientu |
| Azeri, Crimean Tatar, Turkish | yüz |
| Basque | ehun |
| Breton | kant |
| Catalan, Esperanto, French | cent |
| Chinese, Japanese | 百, 佰 (hyaku) |
| Danish | hundred, hundrede |
| Estonian | sada |
| Faroese, Icelandic | hundrað |
| Finnish | sata |
| Galician | cen, cento |
| German | hundert |
| Greek | εκατό, εκατόν |
| Hungarian | száz |
| Indonesian, Malay | ratus |
| Irish | céad |
| Italian | cento |
| Korean | 백 |
| Latin | centum |
| Latvian | simts |
| Lithuanian | šimtas |
| Luxembourgish | honnert |
| Maltese | mija |
| Norwegian | hundre |
| Portuguese | cem, cento |
| Romanian | sută |
| Slavonic | sto, сто |
| Spanish | cien, ciento |
| Swedish | hundra |
| Welsh | cant |
In all of Slavic languages, 100 is called "sto" or "сто" in Cyrillic (pronounciation is the same), except Bosnian and Croatian languages.
| Language | Name |
|---|---|
| Bosnian | stotinu |
| Croatian | jedna stotina |
In googology
100 dots arranged in a square
In Greek-based number-naming systems, 100 is associated with prefix hecto-, and with prefix centi- in Latin systems. It is found in many googologisms also based on 10, such as googol.
100 can be named "garten" with the gar- prefix.
Aarex Tiaokhiao calls this number booiol or 2-noogol.[3]
Username5243 calls this number goodol, and it's equal to 10[1]2 in Username5243's Array Notation.[4]
In science
It is also the atomic number of fermium, the heaviest element that can be formed by neutron capture from naturally occuring elements.
Some currencies, such as the euro and the United States dollar, have banknotes with this number in the denomination.
Some currencies, such as the Hungarian forint and the Indonesian rupiah, have coins with this number in the denomination.
It is also the prize for correctly answering the first question in some national editions of the game show Who Wants to Be a Millionaire? in the respective local currency, and the prize for correctly answering the first two questions in the German game show Wer wird Millionär? in euros.
Example
Below are 100 copies of the letter A.
- A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A
In other notations
All of these expression in other notations are exact.
| Notation | Expression |
|---|---|
| Up-arrow notation | \(10 \uparrow 2\) |
| Hyper-E notation | \(E2\#1, E2\) |
| Chained arrow notation | \(10 \rightarrow 2\) |
| BEAF | \(\{10,2\}\) |
| Fast-growing hierarchy | \(f_1(50)\), \(f_0(99)\) |
| Slow-growing hierarchy | \(g_\omega(100)\); \(g_{100}(n)\) |
| Hardy hierarchy | \(H_{\omega} (50)\) |
Sources
Megoogol · Meg-Googol · Meg-Doogol · Meg-Kiloogol · Meg-Kil-Googol · Meg-Dukiloogol · Meg-Trukiloogol · Dumegoogol · Dumeg-Googol · Dumeg-Kiloogol · Dumeg-Dukiloogol · Trumegoogol · Trumeg-Kiloogol · Tetrumegoogol · Pentumegoogol · Gigoogol · Gig-Googol · Gig-Kiloogol · Gig-Megoogol · Dugigoogol · Trugigoogol · Teroogol · Duteroogol · Truteroogol · Petoogol · Ectoogol · Zettoogol · Yottoogol · Xennoogol · Wekoogol
Note: The readers should be careful that numbers defined by Username5243's Array Notation are ill-defined as explained in Username5243's Array Notation#Issues. So, when an article refers to a number defined by the notation, it actually refers to an intended value, not an actual value itself (for example, a[c]b = \(a \uparrow^c b\) in arrow notation). In addition, even if the notation is ill-defined, a class category should be based on an intended value when listed, not an actual value itself, as it is not hard to fix all the issues from the original definition, hence it should not be removed.
Gar-: garone · gartwo · garthree · garfour · garfive · garsix · garseven · gareight · garnine · garten · garhundred · garmillion · gargoogol · gareceton · gartrialogue · gargoogolplex · gargiggol
Fz-: fzone · fztwo · fzthree · fzfour · fzfive · fzsix · fzseven · fzeight · fznine · fzten · fztwenty · fzhundred · fzthousand · fzmillion · fzgoogol · fzmilliplexion · fzgoogolplex · fzgargoogolplex · fzgargantugoogolplex · fzgiggol
Fuga-: fugaone · fugatwo · fugathree · fugafour · fugafive · fugasix · fugaseven · fugaeight · fuganine · fugaten · fugahundred · fugagoogol · fugagoogolplex · fugagargoogolplex · fugagargantugoogolplex · fugagiggol
Megafuga-: megafugaone · megafugatwo · megafugathree · megafugafour · megafugafive · megafugasix · megafugaseven · megafugaeight · megafuganine · megafugaten · megafugahundred · megafugagoogol · megafugagoogolplex · megafugagargoogolplex · megafugagargantugoogolplex · megafugagrangol
Extensions:
Booga-:: boogaone · boogatwo · boogathree · boogafour · boogafive · boogasix · boogaten · boogahundred · boogagoogol · boogagoogolplex
Gag-:: gagone · gagtwo · gagthree · gagfour · gagfive · gagsix · gagseven · gageight · gagnine · gagten · gaggoogol · gaggoogolplex