Googology Wiki
Googology Wiki

Prefix is an affix which is placed before a word. In this article, prefixes associated with numbers are shown.

Googological prefixes[]

Here are some googological prefixes.

SI prefixes[]

Prefix to be used with an SI unit is shown at SI prefix.

Non-SI prefixes[]

Although SI prefix is determined by CGPM, some people make "extention" of SI prefix, as listed here. As they are not determined by CGPM, they are actually non-SI prefixes. For a standard SI prefix, refer to SI prefix.

Andre Joyce's extension[]

Andre Joyce fabricated an extension to the system,[1] noting that zetta and yotta seem related to sette (Italian "seven") and otto (Italian "eight.") Following the reverse-alphabet pattern, we have xova- \(= 10^{27}\), x + nove, and weica- \(= 10^{30}\), w + dieci. (The last letter has been changed to a to keep the pattern.) The pattern for the corresponding negative exponents, like deci-, centi-, and milli-, all end in -i.

From here, only the first syllable of the Italian number is used. We have:

  • vunda- = \(10^{33}\), v + und(ici), vundi- = \(10^{-33}\)
  • uda- = \(10^{36}\), u + (do)d(ici), udi- = \(10^{-36}\)
  • treda- = \(10^{39}\), t + tred(ici), tredi- = \(10^{-39}\)
  • satta- = \(10^{42}\), s + (qu)att(ordici), satti- = \(10^{-42}\)
  • rinda- = \(10^{45}\), r + (qu)ind(ici), rindi- = \(10^{-45}\)
  • qeda- = \(10^{48}\), q + (s)ed(ici), qedi- = \(10^{-48}\)
  • pica- = \(10^{51}\), p + (d)ic(iasette), pici- = \(10^{-51}\)
  • oca- = \(10^{54}\), o + (di)c(iotto), oci- = \(10^{-54}\)
  • nica- = \(10^{57}\), n + (di)c(iannove), nici- = \(10^{-57}\)
  • menta- = \(10^{60}\), m + (v)ent(i), menti- = \(10^{-60}\)

The system continues to zotta- = \(10^{255}\) and zotti- = \(10^{-255}\).

Jim Blowers' extension[]

Initially Jim Blowers, like Andre Joyce, followed reverse-alphabet pattern and extends his system up to vigintillion:

  • xona- = 1027
  • weka- = 1030
  • vunda- = 1033
  • uda- = 1036
  • treda- = 1039
  • sorta- = 1042
  • rinta- = 1045
  • quexa- = 1048
  • pepta- = 1051
  • ocha- = 1054
  • nena- = 1057
  • minga- = 1060
  • luma- = 1063

However, recently he changed this system and proposed his own system of prefixes up to 103,000. Here is a list of his prefixes:[2]

Hella-extension[]

Austin Sendek, a University of California student, started a (somewhat jocular) Facebook petition to make "hella-" the official SI prefix for 1027.[3][4] "Hella" is a slang term originating out of Northern California, meaning "a lot of" or "very". The term has not become official, but both Google and Wolfram|Alpha have adopted it into their calculator systems.[5]

Other extensions[]

There are many other extensions to the SI prefixes, which are listed on the wiki's articles on extended SI prefixes - for example, see the article Prefix 1027.

Sources[]

See also[]

Googological affixes

Suffixes: -teen · -ty · -plex · -illion · -yllion · -sy · -exian · -eciam · -long · -chime · -toll · -gong · -bong · -throng · -illiob
Prefixes: gar- · fz- · fuga- · megafuga- · booga- · trooga- · googo- · googolple-
SI prefixes: deca- · hecto- · kilo- · mega- · giga- · tera- · peta- · exa- · zetta- · yotta- · ronna- · quetta-
Non-SI prefixes: 1.001 · 1.01 · 1.1 · 1.5 · 2 · 3 · 666 · 104 · 105 · 107 · 108 · 1010 · 1011 · 1013 · 1014 · 1016 · 1017 · 1019 · 1020 · 1022 · 1023 · 1025 · 1027 · 1028 · 1029 · 1030 · 1031 · 1032 · 1033 · 1034 · 1035 · 1036 · 1039 · 1042 · 1045 · 1048 · 1051 · 1054 · 1057 · 1060 · 1063 · 1066 · 1069 · 1072 · 1075 · 1090 · 10100 · 10120 · 10150 · 10180 · 10210 · 10240 · 10270 · 10300 · 10600 · 10900 · 101200 · 101500 · 101800 · 102100 · 102400 · 102700 · 103000 and higher · 104*10100