4 (number): Difference between revisions
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{{dablink|This page is about the number |
{{dablink|This page is about the number 4. For the year, see [[4]]}} |
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{{Infobox number |
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[[File:En-us-Four.ogg|thumb|right|]] |
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| number = 4 |
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| numeral = [[Quaternary numeral system|quaternary]] |
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| divisor = 1, 2, 4 |
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| roman unicode = Ⅳ, ⅳ |
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| greek prefix = [[wikt:tetra-|tetra-]] |
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| latin prefix = [[wikt:quadri-|quadri-]]/[[wikt:quadr-|quadr-]] |
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| lang1 = [[Greek numerals|Greek]] |
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| lang1 symbol = δ (or Δ) |
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| lang2 = [[Arabic language|Arabic]] |
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| lang2 symbol = {{resize|150%|٤,4}} |
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| lang3 = [[Persian language|Persian]] |
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| lang3 symbol = {{resize|150%|۴}} |
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| lang4 = [[Urdu]] |
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| lang4 symbol= {{Urdu|4|11|top}} |
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| lang5 = [[Ge'ez alphabet|Ge'ez]] |
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| lang5 symbol = ፬ |
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| lang6 = [[Bengali language|Bengali]] |
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| lang6 symbol = {{resize|150%|৪}} |
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| lang7 = [[Chinese numeral]] |
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| lang7 symbol = 四，亖，肆 |
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| lang8 = [[Korean numerals|Korean]] |
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| lang8 symbol = 넷,사 |
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| lang9 = [[Devanāgarī|Devanagari]] |
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| lang9 symbol = {{resize|150%|४}} |
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| lang10 = [[Telugu language|Telugu]] |
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| lang10 symbol = {{resize|150%|౪}} |
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| lang11 = [[Malayalam Language|Malayalam]] |
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| lang11 symbol = {{resize|150%|൪}} |
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| lang12 = [[Tamil language|Tamil]] |
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| lang12 symbol = {{resize|150%|௪}} |
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| lang13 = [[Hebrew (language)|Hebrew]] |
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| lang13 symbol = ארבע (Arba, pronounced AR-bah) or {{resize|150%|ד}} ([[Dalet]], 4th letter of the Hebrew alphabet) |
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| lang14 = [[Khmer numerals|Khmer]] |
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| lang14 symbol = ៤ |
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| lang15 = [[Thai numerals|Thai]] |
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| lang15 symbol = ๔ |
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| lang16 = [[Kannada language|Kannada]] |
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| lang16 symbol = ४ |
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}} |
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[[File:En-us-Four.ogg|thumb|right|Pronunciation of the number 4]] |
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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'''. |
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'''. |
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== Mathematics == |
== Mathematics == |
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In [[mathematics]], 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]]. |
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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. |
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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. |
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{{Math-stub}} |
{{Math-stub}} |
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[[Category:Square numbers]] |
[[Category:Square numbers]] |
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[[Category:Integers]] |
[[Category:Integers]] |
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[[Category:Mathematics]] |
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[[ang:Fēower]] |
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[[ab:Ҧшьба]] |
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[[ar:4 (عدد)]] |
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[[arc:4 (ܡܢܝܢܐ)]] |
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[[ast:Cuatro]] |
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[[gn:Irundy]] |
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[[av:Ункъо]] |
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[[ay:Pusi]] |
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[[az:4 (ədəd)]] |
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[[zh-min-nan:4]] |
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[[bi:Fo]] |
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[[bg:4 (число)]] |
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[[bo:༤ (གྲངས་ཀ།)]] |
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[[bs:4 (broj)]] |
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[[br:Pevar]] |
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[[ca:Quatre]] |
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[[cv:4 (хисеп)]] |
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[[ceb:4 (numero)]] |
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[[cs:4 (číslo)]] |
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[[ny:Nayi]] |
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[[sn:China]] |
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[[tum:Vinayi]] |
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[[cy:Pedwar]] |
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[[da:4 (tal)]] |
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[[pdc:Vier]] |
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[[de:Vier]] |
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[[en:4 (number)]] |
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[[myv:4 (ловома вал)]] |
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[[es:Cuatro]] |
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[[eo:Kvar]] |
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[[eu:Lau]] |
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[[fa:۴ (عدد)]] |
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[[fo:4 (tal)]] |
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[[fr:4 (nombre)]] |
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[[ff:Nayi]] |
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[[gl:Catro]] |
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[[gan:4]] |
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[[hak:4]] |
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[[xal:4]] |
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[[ko:4]] |
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[[ha:Huɗu]] |
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[[hr:Četiri]] |
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[[ig:Anọ]] |
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[[id:4 (angka)]] |
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[[ia:4 (numero)]] |
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[[ik:Sisamat]] |
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[[xh:Zine]] |
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[[is:Fjórir]] |
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[[it:4 (numero)]] |
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[[he:4 (מספר)]] |
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[[kn:ನಾಲ್ಕು]] |
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[[ka:ოთხი]] |
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[[rn:Kane]] |
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[[kv:4 (нёль)]] |
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[[kg:4 (ntalu)]] |
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[[ht:4 (nonm)]] |
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[[ku:Çar (hejmar)]] |
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[[lbe:Мукьва]] |
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[[la:Quattuor]] |
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[[lv:4 (skaitlis)]] |
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[[lb:Véier]] |
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[[lt:4 (skaičius)]] |
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[[ln:Mínei]] |
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[[lg:Nnya]] |
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[[lmo:Nümar 4]] |
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[[hu:4 (szám)]] |
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[[mk:4 (број)]] |
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[[ml:4 (അക്കം)]] |
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[[xmf:ოთხი]] |
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[[ms:4 (nombor)]] |
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[[nah:Nāhui]] |
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[[fj:Va]] |
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[[nl:4 (getal)]] |
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[[cr:ᓀᐤ]] |
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[[ja:4]] |
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[[frr:Fjouer]] |
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[[no:4 (tall)]] |
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[[nn:Talet 4]] |
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[[uz:4 (son)]] |
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[[pa:੪ (ਅੰਕ)]] |
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[[pnb:4]] |
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[[koi:4 (нёль)]] |
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[[pl:4 (liczba)]] |
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[[pt:Quatro]] |
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[[ro:4 (cifră)]] |
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[[qu:Tawa]] |
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[[ru:4 (число)]] |
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[[nso:4 (nomoro)]] |
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[[scn:Quattru]] |
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[[sk:4 (číslo)]] |
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[[sl:4 (število)]] |
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[[so:Afar (lambar)]] |
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[[srn:Numro 4]] |
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[[sr:4 (број)]] |
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[[sh:4 (broj)]] |
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[[fi:4 (luku)]] |
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[[sv:4 (tal)]] |
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[[tl:4 (bilang)]] |
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[[ta:4 (எண்)]] |
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[[te:నాలుగు]] |
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[[th:4]] |
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[[ti:ኣርባዕተ]] |
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[[ve:Ina]] |
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[[tr:4 (sayı)]] |
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[[tk:4 (san)]] |
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[[bug:4 (nomoro)]] |
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[[uk:4 (число)]] |
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[[vep:4 (lugu)]] |
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[[vi:4 (số)]] |
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[[vls:4 (getal)]] |
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[[war:4 (ihap)]] |
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[[wo:Ñent]] |
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[[ts:Mune]] |
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[[yi:4 (נומער)]] |
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[[yo:4 (nọ́mbà)]] |
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[[zh-yue:4]] |
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[[zh:4]] |
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Latest revision as of 18:47, 5 December 2024
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|---|---|---|---|---|
| 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 | |||
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
[change | change source]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.
