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Names for Large Numbers

Scientists have given names to some large numbers. These can be used as prefixes to units. So kilogram means 1000 grams. Here is a list of all the prefixes for large numbers. See the page Small Numbers for information on numbers less than 1.

prefix

symbol

multiply by

yotta

Y

1024

zetta

Z

1021

exa

E

1018

peta

P

1015

tera

T

1012

giga (=billion)

G

109

mega (=million)

M

106

kilo (=thousand)

k

103

hecto or hect

h

102

deca or dec

da

10

 

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History of the Universe eBook. 398 pages, 300 illustrations only $2.99

eBook only $2.99
398 pages, 300 images

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