10^12; T
tera
10^9; G
giga
10^6; M
mega
10^3; k
kilo
10^2; h
hecto
10^1; da
deka
10^-1; d
deci
10^-2; c
centi
10^-3; m
milli
10^-6; �
micro
10^-9; n
nano
10^-12; p
pico