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Friday, May 21, 2004

Prefixes for decimal multiples of units and parts of units




























































































































prefix
abbreviation
meaning
tera
T
trillion times = 1012 = 1,000,000,000,000
giga
G
billion times = 109 = 1,000,000,000
mega
M
millionfold = 106 = 1,000,000
kilo
k
thousandfold = 103 = 1,000
hecto
h
hundredfold = 102 = 100
deca
da
tenfold = 101 = 10
 
initial value = 100 = 1
deci
d
tenth = 10-1 = 0.1
centi
c
hundredth = 10-2 = 0.01
milli
m
thousands = 10-3 = 0.001
micro
µ
millionth = 10-6 = 0.000 001
nano
n
billions = 10-9 = 0.000 000 001
pico
p
trillions = 10-12 = 0.000 000 000 001

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