peta,quadrillion (10^15)
tera,trillion (10^12)
giga,billion (10^9)
mega,million (10^6)
kilo,thousand (10^3)
hecto,hundred (10^2)
deka,ten (10^1)
deci,tenth (10^-1)
centi,hundredth (10^-2)
milli,thousandth (10^-3)
micro,millionth (10^-6)
nano,billionth (10^-9)
pico,trillionth (10^-12)
femto,quadrillionth (10^-15)