E1FC 09/10/2010
14:33:4 Page 13
PREFIXES FOR QUANTITY STATEMENTS
10
18
exa
E
1,000,000,000,000,000,000
10
15
peta
P
1,000,000,000,000,000
10
12
tera
T
1,000,000,000,000
10
9
giga
G
1,000,000,000
10
6
mega
M
1,000,000
10
3
kilo
k
1,000
10
2
hecto
h
100
10
1
deca
da
10
1
1
10
À1
deci
d
0.1
10
À2
centi
c
0.01
10
À3
milli
m
0.001
10
À6
micro
m
0.000001
10
À9
nano
n
0.000000001
10
À12
pico
p
0.000000000001
10
À15
femto
f
0.000000000000001
10
À18
atto
a
0.000000000000000001