Metric prefixes and powers of ten
You should memorize at least the prefixes and symbols for 10-15 to 1015
Name
|
Prefix
|
Symbol
|
Power of ten
|
septillion
|
yotta
|
Y
|
24
|
sextillion
|
zetta
|
Z
|
21
|
quintillion
|
exa
|
E
|
18
|
quadrillion
|
peta
|
P
|
15
|
trillion
|
tera
|
T
|
12
|
billion
|
giga
|
G
|
9
|
million
|
mega
|
M
|
6
|
thousand
|
kilo
|
k
|
3
|
hundred
|
hecto
|
h
|
2
|
ten
|
deca
|
da
|
1
|
tenth
|
deci
|
d
|
-1
|
hundredth
|
centi
|
c
|
-2
|
thousandth
|
milli
|
m
|
-3
|
millionth
|
micro
|
µ (u)
|
-6
|
billionth
|
nano
|
n
|
-9
|
trillionth
|
pico
|
p
|
-12
|
quadrillionth
|
femto
|
f
|
-15
|
quintillionth
|
atto
|
a
|
-18
|
sextillionth
|
zepto
|
z
|
-21
|
septillionth
|
yocto
|
y
|
-24
|