7 (seven) is a positive integer following 6 and preceding 8. Its ordinal form is written "7th" or "seventh".

Properties

In googology

Visualization of 7

  • In Greek-based number naming systems, 7 is associated with prefix hepta-, and with prefix septi- in Latin systems.

Seven.jpeg

  • Using the gag prefix, seven can be called gagtwo, since A(2,2) = 7.
  • 7 is the last digit of Graham's number, and in fact it is the last digit of any power tower of 3's where the height of the tower is at least 2.

In culture

The New Jersey metal band Symphony X composed and performed the song "Seven" as part of their album Paradise Lost.

See also

Numbers named with the fuga- family of prefixes

Gar-: garone · gartwo · garthree · garfour · garfive · garsix · garseven · gareight · garnine · garten · garhundred · gargoogol · gartrialogue · gargoogolplex · gargiggol
Fz-: fzone · fztwo · fzthree · fzfour · fzfive · fzsix · fzseven · fzeight · fznine · fzten · fzeleven · fztwelve · fzthirteen · fzfourteen · fzfifteen · fzsixteen · fzseventeen · fzeighteen · fznineteen · fztwenty · fzthirty · fzforty · fzfifty · fzsixty · fzseventy · fzeighty · fzninety · fzhundred · fzgoogol · fzmillion · fzmilliplexion · fzgoogolplex · fzgargoogolplex · fzgargantugoogolplex · fzgiggol
Fuga-: fugaone · fugatwo · fugathree · fugafour · fugafive · fugasix · fugaseven · fugaeight · fuganine · fugaten · fugaeleven · fugahundred · fugagoogol · fugagoogolplex · fugagargoogolplex · fugagargantugoogolplex · fugagiggol
Megafuga-: megafugaone · megafugatwo · megafugathree · megafugafour · megafugafive · megafugasix · megafugaseven · megafugaeight · megafuganine · megafugaten · megafugaeleven · megafugatwelve · megafugathirteen · megafugafourteen · megafugafifteen · megafugasixteen · megafugaseventeen · megafugaeighteen · megafuganineteen · megafugatwenty · megafugathirty · megafugaforty · megafugafifty · megafugasixty · megafugaseventy · megafugaeighty · megafuganinety · megafugahundred · megafugagoogol · megafugagoogolplex · megafugagargoogolplex · megafugagargantugoogolplex
Booga-: boogaone · boogatwo · boogathree · boogafour · boogafive · boogasix · boogaseven · boogaeight · booganine · boogaten · boogahundred · boogagoogol · boogagoogolplex
Gag: gagone · gagtwo · gagthree · gagfour · gagfive · gagsix · gagseven · gageight · gagnine · gagten · gaghundred · gaggoogol · gaggoogolplex

Community content is available under CC-BY-SA unless otherwise noted.