Names for Large Numbers

Names for Large Numbers

n =  

103n =

 

 

American
name

 

European
name
 

SI prefix

 

Greek-based
name
(proposed)
3  

109

 

billion milliard  

giga-

 

gillion
4  

1012

 

trillion billion  

tera-

 

tetrillion
5  

1015

 

quadrillion billiard  

peta-

 

pentillion
6  

1018

 

quintillion trillion  

exa-

 

hexillion
7  

1021

 

sextillion trilliard  

zetta-

 

heptillion
8  

1024

 

septillion quadrillion  

yotta-

 

oktillion
9  

1027

 

octillion quadrilliard   ennillion
10  

1030

 

nonillion quintillion   dekillion
11  

1033

 

decillion quintilliard   hendekillion
12  

1036

 

undecillion sextillion   dodekillion
13  

1039

 

duodecillion sextilliard   trisdekillion
14  

1042

 

tredecillion septillion   tetradekillion
15  

1045

 

quattuordecillion septilliard   pentadekillion
16  

1048

 

quindecillion octillion   hexadekillion
17  

1051

 

sexdecillion octilliard   heptadekillion
18  

1054

 

septendecillion nonillion   oktadekillion
19  

1057

 

octodecillion nonilliard   enneadekillion
20  

1060

 

novemdecillion decillion   icosillion
21  

1063

 

vigintillion decilliard   icosihenillion
22  

1066

 

unvigintillion undecillion   icosidillion
23  

1069

 

duovigintillion undecilliard   icositrillion
24  

1072

 

trevigintillion duodecillion   icositetrillion
25  

1075

 

quattuorvigintillion duodecilliard   icosipentillion
26  

1078

 

quinvigintillion tredecillion   icosihexillion
27  

1081

 

sexvigintillion tredecilliard   icosiheptillion
28  

1084

 

septenvigintillion quattuordecillion   icosioktillion
29  

1087

 

octovigintillion quattuordecilliard   icosiennillion
 

30

 

 

1090

 

 

novemvigintillion

 

 

quindecillion

 

   

triacontillion

 

 

31

 

 

1093

 

 

trigintillion

 

 

quindecilliard

 

   

triacontahenillion

 

32  

1096

 

untrigintillion sexdecillion   triacontadillion
33  

1099

 

duotrigintillion sexdecilliard   triacontatrillion
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