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Decimal Prefixes and Multiples, Powers of Ten
| Multiple |
Prefix |
Symbol |
Common Name |
| (10100)100 |
anton |
A |
antonplex |
| (1010)100 |
- |
- |
googolplex |
| 10100 |
- |
- |
googol |
| 1024 |
yotta |
Y |
heptillion |
| 1021 |
zetta |
Z |
hexillion |
| 1018 |
exa |
E |
quintillion |
| 1015 |
peta |
P |
quadrillion |
| 1012 |
tera |
T |
trillion |
| 109 |
giga |
G |
billion |
| 106 |
mega |
M |
million |
| 103 |
kilo |
k |
thousand |
| 102 |
hecto |
h |
hundred |
| 101 |
deca |
da |
ten |
| 10-1 |
deci |
d |
tenth |
| 10-2 |
centi |
c |
hundreth |
| 10-3 |
milli |
m |
thousandth |
| 10-6 |
micro |
(Greek mu) |
millionth |
| 10-9 |
nano |
n |
billionth |
| 10-12 |
pico |
p |
trillionth |
| 10-15 |
femto |
f |
quadrillionth |
| 10-18 |
atto |
a |
quintillionth |
| 10-21 |
zepto |
z |
hexillionth |
| 10-24 |
yocto |
y |
heptillionth |
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'What a wonderful and amazing scheme have we here of the magnificent vastness of the Universe! So many Suns, so many Earths ...!'
Christiaan Huygens (1629- 1695)
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