These are the commonly used numerical prefixes in the English language, but most seem to translate with European languages.
Mathematical
Prefix
Symbol
Name
Multiplier
vendeko
v
decillionth
10-33
nonillionth
10-30
xenno
x
octillionth
10-27
yocto
y
septillionth
10-24
zepto
z
sextillionth
10-21
atto
a
quintillionth
10-18
femto
f
quadrillionth
10-15
pico
p
trillionth
10-12
nano
n
billionth
10-9
micro
µ
millionth
10-6
milli
m
thousandth
10-3
centi
c
hundredth
10-2
deci
d
tenth
10-1
deka
da
ten
101
hecto
h
hundred
102
kilo
k
thousand
103
mega
M
million
106
giga
G
billion†
109
tera
T
trillion†
1012
peta
P
quadrillion
1015
exa
E
quintillion
1018
zetta
Z
sextillion
1021
yotta
Y
septillion
1024
xenna
X
octillion
1027
V
nonillion
1030
vendeka
V
decillion
1033
undecillion
1036
duodecillion
1039
tredecillion
1042
quattodecillion
1045
quindecillion
1048
sexdecillion
1051
septendecillion
1054
octodecillion
1057
novemdecillion
1060
vigindecillion
1063
googol
10100
googolplex
10google
Digital (Base 2)
Prefix
Symbol
Multiplier
Value
peta
P
250
1,125,899,906,842,624
tera
T
240
1,099,511,627,776
giga
G
230
1,073,741,824
Mega
M
220
1,048,576
kilo
k
210
1,024
IEC Version
Prefix
Symbol
Multiplier
Value
exbi
Ei
260
1,152,921,504,606,846,976
pebi
Pi
250
1,125,899,906,842,624
tebi
Ti
240
1,099,511,627,776
gibi
Gi
230
1,073,741,824
mebi
Mi
220
1,048,576
kibi
Ki
210
1,024
Non-Technical Writing
Prefix
Value
uni, mono
1
bi
2
tri
3
quadr
4
quint, penta
5
hex, sex
6
hept, sept
7
octo
8
novem
9
deca, deka
10
† 1,000,000,000 is called "one billion" in the U.S., U.K., France (before May 3, 1961), Brazil, Puerto Rico, Greece,
and in Italy, Russia and Turkey it is referred to as "one billion" when written out, but as "one milliard" when written as 109.
1,000,000,000,000 is called "one trillion" in the U.S., but is called "one billion" in Germany, the Netherlands, Austria, Sweden, Norway,
Denmark, Finland, France (after May 3, 1961), Portugal, Poland. It is best to check for current definitions for each country
to be certain to get it right, or better yet, just write it out numerically to avoid confusion.
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