4 (number): Difference between revisions

← 3 4 5 →
-1 0 1 2 3 4 5 6 7 8 9 → List of numbers — Integers ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	four
Ordinal	4th; (fourth)
Numeral system	quaternary
Factorization	22
Divisors	1, 2, 4
Greek numeral	Δ´
Roman numeral	IV
Roman numeral (unicode)	Ⅳ, ⅳ
Greek prefix	tetra-
Latin prefix	quadri-/quadr-
Binary	1002
Ternary	113
Quaternary	104
Quinary	45
Senary	46
Octal	48
Duodecimal	412
Hexadecimal	416
Vigesimal	420
Base 36	436
Greek	δ (or Δ)
Arabic	٤,4
Persian	۴
Urdu
Ge'ez	፬
Bengali	৪
Chinese numeral	四，亖，肆
Korean	넷,사
Devanagari	४
Telugu	౪
Malayalam	൪
Tamil	௪
Hebrew	ארבע (Arba, pronounced AR-bah) or ד (Dalet, 4th letter of the Hebrew alphabet)
Khmer	៤
Thai	๔
Kannada	४

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Latest revision as of 18:47, 5 December 2024

Pronunciation of the number 4

The number four is a number and a numeral. It comes after the number three, and before the number five. In Roman numerals, it is IV.

Mathematics

In mathematics, the number four is an even number and the smallest composite number. Four is also the second square number after one. A small minority of people have four fingers on each hand and four toes on each foot.^[source?] Four squared is 16, and four doubled is 8.

In geometry, quadrilaterals or tetragons are a kind of shapes called polygons have four sides and vertices, to which squares are quadrilaterals with sides of same length and vertices of the same wideness.

This short article about mathematics can be made longer. You can help Wikipedia by adding to it.

@@ Line 1: / Line 1: @@
-{{dablink|This page is about the number four.  For the year, see [[4]]}}
+{{dablink|This page is about the number 4.  For the year, see [[4]]}}
+{{Infobox number
-[[File:En-us-Four.ogg|thumb|right|]]
+| number = 4
+| numeral = [[Quaternary numeral system|quaternary]]
+| divisor = 1, 2, 4
+| roman unicode = Ⅳ, ⅳ
+| greek prefix = [[wikt:tetra-|tetra-]]
+| latin prefix = [[wikt:quadri-|quadri-]]/[[wikt:quadr-|quadr-]]
+| lang1 = [[Greek numerals|Greek]]
+| lang1 symbol =  δ (or Δ)
+| lang2 = [[Arabic language|Arabic]]
+| lang2 symbol =  {{resize|150%|٤,4}}
+| lang3 = [[Persian language|Persian]]
+| lang3 symbol =  {{resize|150%|۴}}
+| lang4 = [[Urdu]]
+| lang4 symbol= {{Urdu|4|11|top}}
+| lang5 = [[Ge'ez alphabet|Ge'ez]]
+| lang5 symbol =  ፬
+| lang6 = [[Bengali language|Bengali]]
+| lang6 symbol =  {{resize|150%|৪}}
+| lang7 = [[Chinese numeral]]
+| lang7 symbol =  四，亖，肆
+| lang8 = [[Korean numerals|Korean]]
+| lang8 symbol =  넷,사
+| lang9 = [[Devanāgarī|Devanagari]]
+| lang9 symbol =  {{resize|150%|४}}
+| lang10 = [[Telugu language|Telugu]]
+| lang10 symbol =  {{resize|150%|౪}}
+| lang11 = [[Malayalam Language|Malayalam]]
+| lang11 symbol =  {{resize|150%|൪}}
+| lang12 = [[Tamil language|Tamil]]
+| lang12 symbol =  {{resize|150%|௪}}
+| lang13 = [[Hebrew (language)|Hebrew]]
+| lang13 symbol =  ארבע (Arba, pronounced AR-bah) or {{resize|150%|ד}} ([[Dalet]], 4th letter of the Hebrew alphabet)
+| lang14 = [[Khmer numerals|Khmer]]
+| lang14 symbol =  ៤
+| lang15 = [[Thai numerals|Thai]]
+| lang15 symbol =  ๔
+| lang16 = [[Kannada language|Kannada]]
+| lang16 symbol =  ४
+}}
+[[File:En-us-Four.ogg|thumb|right|Pronunciation of the number 4]]
-The [[number]] '''four''', is a [[number]] and a [[numeral]]. It comes after the number [[3 (number)|three]], and before the number [[5 (number)|five]].
+The [[number]] '''four''' is a [[number]] and a [[numeral]]. It comes after the number [[3 (number)|three]], and before the number [[5 (number)|five]]. In [[Roman numerals]], it is '''IV'''.
-== Math ==
+== Mathematics ==
-In [[math]], the number four is an [[even number]] and the smallest [[composite number]]. Four is also the second [[square number]] after [[one]].
+In [[mathematics]], the number four is an [[even number]] and the smallest [[composite number]]. Four is also the second [[square number]] after [[one]].
+A small minority of people have four [[finger]]s on each [[hand]] and four [[toes]] on each [[foot]].{{Citation needed|date=December 2022}} Four squared is 16, and four doubled is 8.
+In [[geometry]], [[quadrilateral]]s or tetragons are a kind of [[shape]]s called [[polygon]]s have four [[side]]s and [[vertices]], to which [[square]]s are quadrilaterals with sides of same length and vertices of the same wideness.
-== Cultural Influences ==
-In the novel [[Fish Fingers]] the main character of Mathew Jones a serial paedophile, associates himself with the number 4, commonly marking children with the number.
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 [[Category:Square numbers]]
 [[Category:Integers]]
-[[Category:Pedophillia]]
-[[Category:Mathematics]]
-[[ang:Fēower]]
-[[ar:4 (عدد)]]
-[[arc:4 (ܡܢܝܢܐ)]]
-[[ast:Cuatro]]
-[[gn:Irundy]]
-[[ay:Pusi]]
-[[zh-min-nan:4]]
-[[bs:4 (broj)]]
-[[br:Pevar]]
-[[ca:Quatre]]
-[[cv:4 (хисеп)]]
-[[ceb:4 (numero)]]
-[[cs:4 (číslo)]]
-[[cy:Pedwar]]
-[[da:4 (tal)]]
-[[pdc:Vier]]
-[[de:Vier]]
-[[en:4 (number)]]
-[[myv:4 (ловома вал)]]
-[[es:Cuatro]]
-[[eo:Kvar]]
-[[eu:Lau]]
-[[fa:۴ (عدد)]]
-[[fr:4 (nombre)]]
-[[gl:Catro]]
-[[gan:4]]
-[[hak:4]]
-[[xal:4]]
-[[ko:4]]
-[[hr:Četiri]]
-[[ig:Anọ]]
-[[id:4 (angka)]]
-[[ia:4 (numero)]]
-[[xh:Zine]]
-[[it:4 (numero)]]
-[[he:4 (מספר)]]
-[[ka:ოთხი]]
-[[kv:4 (нёль)]]
-[[kg:4 (ntalu)]]
-[[ht:4 (nonm)]]
-[[ku:Çar (hejmar)]]
-[[la:Quattuor]]
-[[lv:4 (skaitlis)]]
-[[lb:Véier]]
-[[lt:4 (skaičius)]]
-[[lmo:Nümar 4]]
-[[hu:4 (szám)]]
-[[mk:4 (број)]]
-[[nah:Nāhui]]
-[[nl:4 (getal)]]
-[[ja:4]]
-[[frr:Fjouer]]
-[[no:4 (tall)]]
-[[nn:Talet 4]]
-[[uz:4 (son)]]
-[[pa:੪ (ਅੰਕ)]]
-[[pnb:4]]
-[[pl:4 (liczba)]]
-[[pt:Quatro]]
-[[qu:Tawa]]
-[[ru:4 (число)]]
-[[scn:Quattru]]
-[[sl:4 (število)]]
-[[srn:Numro 4]]
-[[sr:4 (број)]]
-[[fi:4 (luku)]]
-[[sv:4 (tal)]]
-[[tl:4 (bilang)]]
-[[te:నాలుగు]]
-[[th:4]]
-[[tr:4 (sayı)]]
-[[tk:4 (san)]]
-[[bug:4 (nomoro)]]
-[[uk:4 (число)]]
-[[vi:4 (số)]]
-[[vls:4 (getal)]]
-[[war:4 (ihap)]]
-[[wo:Ñent]]
-[[yi:4 (נומער)]]
-[[zh-yue:4]]
-[[zh:4]]