The prefix mega means one million; this prefix means one billion
In the metric system of measurement, designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth ... [DOC] [TLE] SI Prefixes List - Unit Converter [PAR] List of SI-Prefixes (..., mili, centy, decy, kilo, mega, giga, tera, .