Prefix

In telecommunications some very large and very small values are used. To make writing of these numbers easier use is made of a prefix. The prefix gives a value with which the value must be multiplied.

Some prefixes are also used in digital communications and computer technology but they have a slightly different value because they are based on a power of 2.

Prefix Analog
value
Digital
value
p (pico) 10-12 -
n (nano) 10-9 -
µ (micro) 10-6 -
m (milli) 10-3 -
k (kilo) 103
(1000)
210
(1024)
M (mega) 106
(1,000,000)
220
(1,048,576)
G (Giga) 109
(1,000,000,000)
230
(1,073,741,824)
T (Tera) 1012
(1,000,000,000,000)
240
(1,099,511,627,776)




See also