Table 2. International System (SI) prefixes, prefix symbols and the recommended factors they represent
Prefix
Symbol
Factor
deca
da
10
1
hecto
h
10
2
kilo
k
10
3
mega
M
10
6
giga
G
10
9
tera
T
10
12
peta
P
10
15
exa
E
10
18
deci
d
10
1
centi
c
10
2
milli
m
10
3
micro
μ
10
6
nano
n
10
9
pico
p
10
12
femto
f
10
15
atto
a
10
18
RETURN