Peta-

Peta ə/ is a decimal unit prefix in the metric system denoting multiplication by 1015 (1000000000000000). It was adopted as an SI prefix in the International System of Units in 1975,[1] and has the symbol P.

Peta is derived from the Greek πέντε, meaning "five". It denotes the fifth power of 1000 (10005). It is similar to the prefix penta ("five"), but without the letter n (on the analogy of the prefix tera (from the Greek for "monster") for 10004 looking like tetra- ("four") with a letter missing).

Examples:

PrefixBase 1000Base 10DecimalEnglish wordAdoption[nb 1]
NameSymbolShort scaleLong scale
yottaY 10008 10241000000000000000000000000 septillion quadrillion1991
zettaZ 10007 10211000000000000000000000 sextillion trilliard1991
exaE 10006 10181000000000000000000 quintillion trillion1975
petaP 10005 10151000000000000000 quadrillion billiard1975
teraT 10004 10121000000000000 trillion billion1960
gigaG 10003 1091000000000 billion milliard1960
megaM 10002 1061000000 million1873
kilok 10001 1031000 thousand1795
hectoh 10002/3 102100 hundred1795
decada 10001/3 10110 ten1795
 10000 1001 one
decid 1000−1/3 10−10.1 tenth1795
centic 1000−2/3  10−20.01 hundredth1795
millim 1000−1 10−30.001 thousandth1795
microµ 1000−2 10−60.000001 millionth1873
nanon 1000−3 10−90.000000001 billionth milliardth1960
picop 1000−4 10−120.000000000001 trillionth billionth1960
femtof 1000−5 10−150.000000000000001 quadrillionth billiardth1964
attoa 1000−6 10−180.000000000000000001 quintillionth trillionth1964
zeptoz 1000−7 10−210.000000000000000000001 sextillionth trilliardth1991
yoctoy 1000−8 10−24 0.000000000000000000000001 septillionth quadrillionth1991
  1. ^ Prefixes adopted before 1960 already existed before SI. 1873 was the introduction of the CGS system.
Other Languages
العربية: بيتا (سابقة)
български: Пета-
brezhoneg: Peta
català: Peta-
čeština: Peta
español: Peta (prefijo)
Esperanto: Peta
فارسی: پتا
français: Péta
Frysk: Petameter
galego: Peta-
한국어: 페타
Հայերեն: Պետա
हिन्दी: पद्म (गणित)
Bahasa Indonesia: Peta-
italiano: Peta (prefisso)
ქართული: პეტა...
lietuvių: Peta-
македонски: Пета-
മലയാളം: പെറ്റ
Nederlands: Peta (SI-prefix)
日本語: ペタ
norsk: Peta
norsk nynorsk: Peta
ភាសាខ្មែរ: ប៉េតា
Plattdüütsch: Peta
polski: Peta
português: Peta (prefixo)
Ripoarisch: Peta
русский: Пета-
Scots: Peta-
sicilianu: Peta (prifissu)
slovenčina: Peta
slovenščina: Peta (predpona)
کوردی: پێتا-
српски / srpski: Пета (префикс)
suomi: Peta
svenska: Peta
українська: Пета-
Tiếng Việt: Pêta
粵語: 拍它
中文: 拍它