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IEVref:112-01-27ID:
Language:enStatus: Standard
Term: binary prefix
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Definition: unit prefix used to form a multiple of a unit obtained by multiplying this unit by a power of two

NOTE – SI prefixes refer strictly to powers of 10 and should not be used for power of 2. For example, 1 kilobit should not be used to represent 1 024 bits ((210 bits) bits), which is 1 kibibit.

Prefixes for binary multiples are:

Factor

Value

Prefix

Name

Symbol

(210)1

1 024

kibi

Ki

(210)2

1 048 576

mebi

Mi

(210)3

1 073 741 824

gibi

Gi

(210)4

1 099 511 627 776

tebi

Ti

(210)5

1 125 899 906 842 624

pebi

Pi

(210)6

1 152 921 504 606 846 976

exbi

Ei

(210)7

1 180 591 620 717 411 303 424

zebi

Zi

(210)8

1 208 925 819 614 629 174 706 176

yobi

Yi




Publication date:2010-01
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Internal notes:2019-05-15: <img 112-01-27en.gif> replaced by HTML tagging. JGO
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