Quincy Center for Technical Education
Electronics Department

Subject: Table of Numeration *

Small Numbers

PrefixTable of NumerationActual NumberCommonly Used to Describe
pico 1 X 10-120.000000000001Farads, Inductance, time
nano 1 X 10-90.000000001Farads, Inductance, time
micro 1 X 10-60.000001Farads, Inductance, time, , conductance
milli 1 X 10-30.001 Inductance, time, conductance

Large Numbers

PrefixTable of NumerationActual NumberCommonly Used to Describe
Kilo 1 X 1031,000Resistance, Frequency, Length, Bytes, Bauds
Mega 1 X 1061,000,000Resistance, Frequency, Length, Bytes
Giga 1 X 1091,000,000,000 Frequency, Bytes


Large to Gargantuan Numbers

The following numeration chart is for basic information only, it has it's merit to a degree that it is nice to know or, at least, know that these terms do exist.
Reference: Webster's Collegiate Dictionary "American" (which implies that European standards differ)

TerminologyTable of NumerationNumber of ZerosPowers of Ten
Ten 10 Ones1 1 X 101
1 Hundred 100 Ones2 1 X 102
1 Thousand 1000 Ones3 1 X 103
1 Million 1000 Thousands6 1 X 106
1 Billion 1000 Millions9 1 X 109
1 Trillion 1000 Billions12 1 X 1012
1 Quadrillion 1000 Trillions15 1 X 1015
1 Quintillion 1000 Quadrillions18 1 X 1018
1 Sextillion 1000 Quintillions21 1 X 1021
1 Septillion 1000 Sextillions24 1 X 1024
1 Octillion 1000 Septillions27 1 X 1027
1 Nonillion 1000 Octillions30 1 X 1030
1 Decillion 1000 Nonillion33 1 X 1033
* A special thanks to Mr. Wayne Sargent for researching the above information.