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Information about Yotta

yotta- (symbol Y) is an SI prefix in the SI (system of units) denoting 1024 or 1 000 000 000 000 000 000 000 000.

Adopted in 1991, it comes from the Greek ὀκτώ (októ), meaning eight, because it is equal to 10008.

As of 2007, yotta- is the largest and last SI prefix to be confirmed.

SI prefixes
1000n 10n Prefix Symbol Short scale Long scale Decimal equivalent in SI writing style
100081024yotta-YSeptillionQuadrillion1 000 000 000 000 000 000 000 000
100071021zetta-ZSextillionTrilliard (thousand trillion)1 000 000 000 000 000 000 000
100061018exa-EQuintillionTrillion1 000 000 000 000 000 000
100051015peta-PQuadrillionBilliard (thousand billion)1 000 000 000 000 000
100041012tera-TTrillionBillion1 000 000 000 000
10003109giga-GBillionMilliard (thousand million)1 000 000 000
10002106mega-MMillion1 000 000
10001103kilo-kThousand1 000
10002/3102hecto-hHundred100
10001/3101deca-daTen10
10000100(none)(none)One1
1000−1/310−1deci-dTenth0.1
1000−2/310−2centi-cHundredth0.01
1000−110−3milli-mThousandth0.001
1000−210−6micro-Millionth0.000 001
1000−310−9nano-nBillionthMilliardth0.000 000 001
1000−410−12pico-pTrillionthBillionth0.000 000 000 001
1000−510−15femto-fQuadrillionthBilliardth0.000 000 000 000 001
1000−610−18atto-aQuintillionthTrillionth0.000 000 000 000 000 001
1000−710−21zepto-zSextillionthTrilliardth0.000 000 000 000 000 000 001
1000−810−24yocto-ySeptillionthQuadrillionth0.000 000 000 000 000 000 000 001

See also

External link

An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol) to form a decimal multiple or submultiple.
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Si, si, or SI may refer to (all SI unless otherwise stated):

In language:
  • One of two Italian words:
  • sì (accented) for "yes"
  • si

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common units, but have now been mostly replaced by the metric system in commercial, scientific, and industrial applications.

Contrarily, however, U.S. customary units are still the main system of measurement in the United States.
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This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities.



Smaller than 10-36

  • Computing: The number 510-324

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19th century - 20th century - 21st century
1960s  1970s  1980s  - 1990s -  2000s  2010s  2020s
1988 1989 1990 - 1991 - 1992 1993 1994

Year 1991 (MCMXCI
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Motto
Ελευθερία ή θάνατος
Eleftheria i thanatos  
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20th century - 21st century - 22nd century
1970s  1980s  1990s  - 2000s -  2010s  2020s  2030s
2004 2005 2006 - 2007 - 2008 2009 2010

2007 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
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An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol) to form a decimal multiple or submultiple.
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The long and short scales are two different numerical systems used throughout the world:

Short scale is the English translation of the French term échelle courte.

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The long and short scales are two different numerical systems used throughout the world:

Short scale is the English translation of the French term échelle courte.

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decimal (base ten or occasionally denary) numeral system has ten as its base. It is the most widely used numeral system, perhaps because humans have four fingers and a thumb on each hand, giving a total of ten digits over both hands.
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This section needs additional to facilitate its .
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Quadrillion may mean either of the two numbers (see long and short scales for more detail):
  • 1,000,000,000,000,000 (one thousand million million; ; SI prefix peta) - increasingly common meaning in English language usage.

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zetta- (symbol Z) is an SI prefix in the SI (system of units) denoting 1021 or 1 000 000 000 000 000 000 000.

Adopted in 1991, it comes from the Latin septem, meaning seven, because it is equal to 10007.
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This section needs additional to facilitate its .
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exa- (symbol E) is a prefix in the SI system of units denoting 1018 or 1 000 000 000 000 000 000.

Adopted in 1991, it comes from the Greek ἕξ, meaning six (like hexa- ), because it is equal to 10006.
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Trillion may mean:

Numbers

Either of the two numbers (see long and short scales for more detail):
  • 1,000,000,000,000 (one million million; ; SI prefix tera) - increasingly common meaning in English language usage.

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peta- (symbol: P) is a prefix in the SI (system of units) denoting 1015, or 1 000 000 000 000 000. For example:

1 petametre = 1015 metres

1 petasecond = 1015 seconds
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Quadrillion may mean either of the two numbers (see long and short scales for more detail):
  • 1,000,000,000,000,000 (one thousand million million; ; SI prefix peta) - increasingly common meaning in English language usage.

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Tera- (symbol: T) is a prefix in the SI system of units denoting 1012, or 1,000,000,000,000 (1 million million).

Confirmed in 1960, it comes from the Greek τέρας, meaning monster.
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Trillion may mean:

Numbers

Either of the two numbers (see long and short scales for more detail):
  • 1,000,000,000,000 (one million million; ; SI prefix tera) - increasingly common meaning in English language usage.

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Billion may mean:

Numbers

Either of two numbers (see long and short scales for more detail):
  • 1,000,000,000 (one thousand million; ; SI prefix giga) - increasingly common meaning in English-language usage

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Giga- (symbol: G) is a prefix in the SI system of units denoting 109, or 1,000,000,000 (1 billion). The Oxford English Dictionary reports the earliest written use of giga- in this sense to be in the Reports of the IUPAC 14th Conference in 1947: "The
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Billion may mean:

Numbers

Either of two numbers (see long and short scales for more detail):
  • 1,000,000,000 (one thousand million; ; SI prefix giga) - increasingly common meaning in English-language usage

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Milliard is a French-derived word meaning the number 1,000,000,000 (109; one thousand million; SI prefix giga). It is not used in American English and is rare in other forms of English - the preferred term being 'thousand million'.
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Mega- (symbol M) is an SI prefix in the SI system of units denoting a factor of 106, 1,000,000 (one million).

For example, 1 MW (megawatt) = 1,000,000 watts = 1,000 kilowatts.
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million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001.

In scientific notation, it is written as 106[1]
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