thousand		kilo		3
million			mega		6
billion			giga		9
trillion		tera		12
quadrillion		peta		15
quintillion		exa		18
sextillion		zetta		21
septillion		yotta		24
			kmgtpezy

			milli		-3
			micro		-6
			nano		-9
			pico		-12
			femto		-15
			atto		-18
			zepto		-21
			yocto		-24		one septillionth