Prefix - Multiples

atto	a	quintillionth
femto	f	quadrillionth
pico	p	trillionth		tera	T	trillion
nano	n	billionth		giga	G	billion
micro	u	millionth		mega	M	million
milli	m	thousandth		kilo	k	thousand
centi	c	hundredth		hecto	h	hundred
deci	d	tenth		deca	da	ten