SI prefixes (metric prefixes) are short names and letter symbols that precedes a unit of measure or its symbol. SI prefixes are applied and attached to unit of the International System of Units (SI) which are used to form new subdivisions and multiples (unit symbol) of that unit - prefix symbol attached to the unit symbol. These prefix symbols strictly represent powers of 10 which can be raised to a positive or negative power, as well as, it can also combined with other unit symbols (unit of measure) to form compound unit symbols. They are represented in the general form 10n where n is ranged from anywhere between 24 to -24. As such, prefixes are multiples when n>0 and submultiples when n<0,>

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Prefix	Symbol	Factor	Ordinary Notation	Name
yotta	Y	1024	1 000 000 000 000 000 000 000 000	septillion
zetta	Z	1021	1 000 000 000 000 000 000 000	sextillion
exa	E	1018	1 000 000 000 000 000 000	quintillion
peta	P	1015	1 000 000 000 000 000	quadrillion
tera	T	1012	1 000 000 000 000	trillion
giga	G	109	1 000 000 000	billion
mega	M	106	1 000 000	million
kilo	k	103	1 000	thousand
hecto	h	102	100	hundred
deka	da	101	10	ten
		100	1	one
deci	d	10-1	0.1	tenth
centi	c	10-2	0.01	hundredth
milli	m	10-3	0.001	thousandth
micro	μ	10-6	0.000 001	millionth
nano	n	10-9	0.000 000 001	billionth
pico	p	10-12	0.000 000 000 001	trillionth
femto	f	10-15	0.000 000 000 000 001	quadrillionth
atto	a	10-18	0.000 000 000 000 000 001	quintillionth
zepto	z	10-21	0.000 000 000 000 000 000 001	sextillionth
yocto	y	10-24	0.000 000 000 000 000 000 000 001	septillionth

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