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#
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|
proposed Greek-based name |
|
|---|---|---|---|---|---|---|
| Yocto- | y |
10-24
|
septillionth | |||
| Zepto- | z |
10-21
|
sextillionth | |||
| Atto- | a |
10-18
|
quintillionth | |||
| Femto- | f |
10-15
|
quadrillionth | |||
| Pico- | p |
10-12
|
trillionth | |||
| Nano- | n |
10-9
|
billionth | |||
| Micro- | µ |
10-6
|
millionth | |||
| Centimilli- | cm |
10-5
|
hundred thousandth | |||
| Decimilli- | dm |
10-4
|
ten thousandth | |||
| Milli- | m |
10-3
|
thousandth | |||
| Centi- | c |
10-2
|
hundredth | |||
| Deci- | d |
10-1
|
tenth | |||
|
100
|
one | |||||
| Deka- | dk |
101
|
ten | |||
| Hecto- | h |
102
|
hundred | |||
| Kilo- | k |
103
|
thousand | |||
| Myria- | ma |
104
|
ten thousand | |||
| Hectokilo- | hk |
105
|
hundred thousand | |||
| Mega- | M |
106
|
million | million | ||
| Giga- | G |
109
|
billion | milliard | gillion | also pronounced /jigi/, as in: 1.21 gigawatts! (from Back to the Future) |
| Tera- | T |
1012
|
trillion | billion | tetrillion | |
| Peta- | P |
1015
|
quadrillion | billiard | pentillion | |
| Exa- | E |
1018
|
quintillion | trillion | hexillion | |
| Zetta- | Z |
1021
|
sexillion | trilliard | heptillion | |
| Yotta- | Y |
1024
|
septillion | quadrillion | oktillion | |
|
1027
|
octillion | quadrilliard | ennillion | |||
|
1030
|
nonillion | quintillion | dekillion | |||
|
1033
|
decillion | quintilliard | hendekillion | |||
|
1036
|
undecillion | sextillion | dodekillion | |||
|
1039
|
duodecillion | sextilliard | trisdekillion | |||
|
1042
|
tredecillion | septillion | tetradekillion | |||
|
1045
|
quattuordecillion | septilliard | pentadekillion | |||
|
1048
|
quindecillion | octillion | hexadekillion | |||
|
1051
|
sexdecillion | octilliard | heptadekillion | |||
|
1054
|
septdecillion | nonillion (noventillion) | oktadekillion | |||
|
1057
|
octodecillion | nonilliard (noventilliard) | enneadekillion | |||
|
1060
|
novemdecillion | decillion | icosillion | |||
|
|
|
1063
|
vigintillion | decilliard | icosihenillion | |
|
|
|
1066
|
unvigintillion |
undecillion |
icosidillion | |
|
|
|
1069
|
duovigintillion |
undecilliard |
icositrillion | |
|
|
|
1072
|
trevigintillion |
dodecillion
(duodecillion) |
icositetrillion | |
|
|
|
1075
|
quattuorvigintillion |
dodecilliard
(duodecilliard) |
icosipentillion | |
|
|
|
1078
|
quinvigintillion |
tredecillion |
icosihexillion | |
|
|
|
1081
|
sexvigintillion |
tredecilliard |
icosiheptillion | |
|
|
|
1084
|
septvigintillion |
quattuordecillion |
icosioktillion | |
|
|
|
1087
|
octovigintillion |
quattuordecilliard |
icosiennillion | |
|
|
|
1090
|
novemvigintillion |
quindecillion |
triacontillion | |
|
1093
|
trigintillion |
quindecilliard | triacontahenillion | |||
|
1096
|
untrigintillion |
sexdecillion | triacontadillion | |||
|
1099
|
duotrigintillion |
sexdecilliard | triacontatrillion | |||
|
10100
|
googol (10 duotrigintillion) |
googol (10 sexdecilliard) |
||||
|
10102
|
tretrigintillion |
septendecillion | ||||
|
10105
|
quattuortrigintillion |
septendecilliard | ||||
|
10108
|
quintrigintillion |
octodecillion | ||||
|
10111
|
sextrigintillion |
octodecilliard | ||||
|
10114
|
septtrigintillion |
novemdecillion | ||||
|
10117
|
octotrigintillion |
novemdecilliard | ||||
|
10120
|
novemtrigintillion |
vigintillion | ||||
|
10123
|
quardragintillion | |||||
|
10126
|
unquardragintillion | |||||
|
10129
|
duoquardragintillion | |||||
|
10132
|
trequardragintillion | |||||
|
10135
|
quattuorquardragintillion | |||||
|
10138
|
quinquardragintillion | |||||
|
10141
|
sexquardragintillion | |||||
|
10144
|
septquardragintillion | |||||
|
10147
|
octoquardragintillion | |||||
|
10150
|
novemquardragintillion | |||||
|
10153
|
quinquagintillion | |||||
|
10156
|
unquinquagintillion | |||||
|
10159
|
duoquinquagintillion | |||||
|
10162
|
trequinquagintillion | |||||
|
10165
|
quattuorquinquagintillion | |||||
|
10168
|
quinquinquagintillion | |||||
|
10171
|
sexquinquagintillion | |||||
|
10174
|
septquinquagintillion | |||||
|
10177
|
octoquinquagintillion | |||||
|
10180
|
novemquinquagintillion | |||||
|
10183
|
sexagintillion | |||||
|
10186
|
unsexagintillion | |||||
|
10189
|
duosexagintillion | |||||
|
10192
|
tresexagintillion | |||||
|
10195
|
quattuorsexagintillion | |||||
|
10198
|
quinsexagintillion | |||||
|
10201
|
sexsexagintillion | |||||
|
10204
|
septsexagintillion | |||||
|
10207
|
octosexagintillion | |||||
|
10210
|
novemsexagintillion | |||||
|
10213
|
septuagintillion | |||||
|
10216
|
unseptuagintillion | |||||
|
10219
|
duoseptuagintillion | |||||
|
10222
|
treseptuagintillion | |||||
|
10225
|
quattuorseptuagintillion | |||||
|
10228
|
quinseptuagintillion | |||||
|
10231
|
sexseptuagintillion | |||||
|
10234
|
septseptuagintillion | |||||
|
10237
|
octoseptuagintillion | |||||
|
10240
|
novemseptuagintillion | |||||
|
10243
|
octogintillion | |||||
|
10246
|
unoctogintillion | |||||
|
10249
|
duooctogintillion | |||||
|
10252
|
treoctogintillion | |||||
|
10255
|
quattuoroctogintillion | |||||
|
10258
|
quinoctogintillion | |||||
|
10261
|
sexoctogintillion | |||||
|
10264
|
septoctogintillion | |||||
|
10267
|
octooctogintillion | |||||
|
10270
|
novemoctogintillion | |||||
|
10273
|
nonagintillion | |||||
|
10276
|
unnonagintillion | |||||
|
10279
|
duononagintillion | |||||
|
10282
|
trenonagintillion | |||||
|
10285
|
quattuornonagintillion | |||||
|
10288
|
quinnonagintillion | |||||
|
10291
|
sexnonagintillion | |||||
|
10294
|
septnonagintillion | |||||
|
10297
|
octononagintillion | |||||
|
10300
|
novemnonagintillion | |||||
|
10303
|
centillion | |||||
|
10600
|
centillion | |||||
|
|
10(10^100)
|
googolplex | googolplex | 1 followed by a googol zeros | ||
|
106n
|
(2n-1)-illion | n-illion | ||||
|
106n+3
|
(2n)-illion | n-illiard |
Links
Visualize big numbers at the megapenny page.
Description of the origin of the European number naming system.
A page about the asian number system.
Some additional information about large numbers (from Wolfram Research).
A discussion of really large numbers.
More information about large number naming.
One of the sources I used to put together this page.
Some info on binary prefixes.
g42.org.