3

← 2 3 4 →
-1 0 1 2 3 4 5 6 7 8 9
Cardinalthree
Ordinal3rd
(third)
Numeral systemternary
Factorizationprime
Prime2nd
Divisors1, 3
Greek numeralΓ´
Roman numeralIII
Roman numeral (unicode)Ⅲ, ⅲ
Greek prefixtri-
Latin prefixtre-/ter-
Binary112
Ternary103
Quaternary34
Quinary35
Senary36
Octal38
Duodecimal312
Hexadecimal316
Vigesimal320
Base 36336
Arabic & Kurdish & Persian٣
Urdu۳
Bengali
Chinese三,弎,叁
Devanāgarī
Ge'ez
Greekγ (or Γ)
Hebrewג
Japanese三/参
Khmer
Korean셋,삼
Malayalam
Tamil
Telugu
Thai

3 (three) is a number, numeral, and glyph. It is the natural number following 2 and preceding 4.

Evolution of the glyph

Three remains the largest number still written with the number of lines corresponding to the value (though the Ancient Romans usually wrote 4 as IIII, the subtractive notation IV became the preferred notation throughout and after the Middle Ages). To this day, 3 is written as three lines in Roman and Chinese numerals. This is also true regarding the Brahmin Indians' numerical notation. However, the path towards the modern glyph began with the Gupta, who modified the number through the addition of a curve on each line. Henceforth, the Nagari rotated the lines in a clockwise manner, and began ending each line with a slight downward stroke on the right. Eventually, they these strokes were connected (as a result of ease, in a manner similar to cursive) with the lines below, and therefore rendered the number a glyph that possesses many similarities to the modern 3, albeit with an additional stroke at the bottom as . The Western Ghubar Arabs, however, possess the accomplishment of eliminating the additional stroke and hence creating the modern 3.

The "extra" stroke, however, held great importance to the Eastern Arabs, which resulted in its enlargement. In addition, they rotated the strokes above to lie along a horizontal axis - and to this day Eastern Arabs write a 3 that appears to be a mirrored number 7 with ridges on its top line: ٣[1]

While the shape of the 3 character has an ascender in most modern typefaces, in typefaces with text figures the character usually has a descender, as, for example, in Text figures 036.svg. In some French text-figure typefaces, though, it has an ascender instead of a descender.

Flat-topped 3

A common variant of the digit three has a flat top, similar to the character Ʒ (ezh). This form is sometimes used to prevent people from fraudulently changing a three into an eight. It is usually found on UPC-A barcodes and standard 52-card decks.

Other Languages
አማርኛ: ሦስት
Ænglisc: Þrīe
العربية: 3 (عدد)
ܐܪܡܝܐ: 3 (ܡܢܝܢܐ)
অসমীয়া:
asturianu: Tres
Avañe'ẽ: Mbohapy
авар: Лъабго
azərbaycanca: 3 (ədəd)
تۆرکجه: ۳ (سایی)
Bân-lâm-gú: 3
башҡортса: Өс
беларуская: 3 (лік)
беларуская (тарашкевіца)‎: 3 (лік)
Bislama: Tri
български: 3 (число)
བོད་ཡིག: ༣ (གྲངས་ཀ།)
bosanski: 3 (broj)
brezhoneg: Tri
català: Tres
Чӑвашла: 3 (хисеп)
Cebuano: 3 (numero)
čeština: 3 (číslo)
chiShona: Tatu
chiTumbuka: Vitatu
Cymraeg: Tri
dansk: 3 (tal)
Deitsch: Drei
Deutsch: Drei
eesti: Kolm
Ελληνικά: 3 (αριθμός)
emiliàn e rumagnòl: 3 (nùmer)
español: Tres
Esperanto: 3 (nombro)
euskara: Hiru
فارسی: ۳ (عدد)
føroyskt: 3 (tal)
français: 3 (nombre)
Fulfulde: Tati
furlan: 3 (numar)
Gaeilge: 3 (uimhir)
galego: Tres
ГӀалгӀай: 3
贛語: 3
ગુજરાતી:
客家語/Hak-kâ-ngî: 3
хальмг: 3
한국어: 3
Hausa: Uku
հայերեն: 3 (թիվ)
hrvatski: Tri
Bahasa Hulontalo: 3
Igbo: Atọ
Bahasa Indonesia: 3 (angka)
interlingua: 3 (numero)
Iñupiak: Piŋasut
isiXhosa: Zintathu
íslenska: Þrír
italiano: 3 (numero)
עברית: 3 (מספר)
ಕನ್ನಡ: ಮೂರು
ქართული: 3 (რიცხვი)
қазақша: 3 (сан)
Kirundi: Gatatu
Kiswahili: Tatu
коми: 3 (куим)
Kreyòl ayisyen: 3 (nonm)
kurdî: Sê (hejmar)
лакку: Шанма
Latina: Tres
latviešu: 3 (skaitlis)
Lëtzebuergesch: Dräi
lietuvių: 3 (skaičius)
Limburgs: Drie
lingála: Mísáto
Luganda: Ssatu
lumbaart: Nümar 3
magyar: 3 (szám)
македонски: 3 (број)
മലയാളം: 3 (അക്കം)
მარგალური: სუმი
Bahasa Melayu: 3 (nombor)
Mìng-dĕ̤ng-ngṳ̄: 3
монгол: Гурав
Nāhuatl: Eyi
Na Vosa Vakaviti: Tolu
Nederlands: 3 (getal)
日本語: 3
Napulitano: Tre
Nordfriisk: Trii
norsk: 3 (tall)
norsk nynorsk: Talet 3
ଓଡ଼ିଆ: ୩ (ସଂଖ୍ୟା)
oʻzbekcha/ўзбекча: 3 (son)
پنجابی: 3
پښتو: ۳
Перем Коми: 3 (куим)
ភាសាខ្មែរ: ៣ (លេខ)
polski: 3 (liczba)
português: Três
română: 3 (cifră)
Runa Simi: Kimsa
русский: 3 (число)
саха тыла: Үс (ахсаан)
ᱥᱟᱱᱛᱟᱲᱤ:
Gagana Samoa: Tolu (numera)
Scots: 3 (nummer)
Sesotho sa Leboa: 3 (nomoro)
shqip: 3 (numër)
sicilianu: 3 (nummiru)
Simple English: 3 (number)
slovenčina: 3 (číslo)
slovenščina: 3 (število)
ślůnski: 3 (nůmera)
Soomaaliga: 3 (tiro)
کوردی: ٣ (ژمارە)
Sranantongo: Numro 3
српски / srpski: 3 (број)
srpskohrvatski / српскохрватски: 3 (broj)
suomi: 3 (luku)
svenska: 3 (tal)
Tagalog: 3 (bilang)
தமிழ்: 3 (எண்)
татарча/tatarça: 3 (сан)
తెలుగు: మూడు
ไทย: 3
ትግርኛ: ሰለስተ
Tshivenda: Raru
Türkçe: 3 (sayı)
Türkmençe: 3 (san)
Twi: 3
тыва дыл: 3
ᨅᨔ ᨕᨘᨁᨗ: 3 (nomoro)
українська: 3 (число)
اردو: 3 (عدد)
Vahcuengh: 3
vepsän kel’: 3 (lugu)
Tiếng Việt: 3 (số)
文言:
West-Vlams: 3 (getal)
Winaray: 3 (ihap)
Wolof: Ñatt
吴语: 3
Xitsonga: Nharhu
ייִדיש: 3 (נומער)
Yorùbá: 3 (nọ́mbà)
粵語: 3
中文: 3