The following are the prefixes associated with, and the abbreviations for the different powers of ten.

**Multiple Prefix Abbreviation**
10^{18} exa E
10^{15} peta P
10^{12} tera T
10^{9} giga G
10^{6} mega M
10^{3} kilo k
10^{2} hecto h
10^{1} deka da
10^{-1} deci d
10^{-2} centi c
10^{-3} milli m
10^{-6} micro μ
10^{-9} nano n
10^{-12} pico p
10^{-15} femto f
10^{-18} atto a

So, something that is 1/100th of a meter is called a centimeter, and abreviated cm. Nifty, huh?