The yellow highlights are commonly used in Electronics and Computing. The others are more exotic and/or extreme!

Note the lower case k for Kilo. Using an upper case K is a common but unimportant mistake because it does not lead to ambiguity.

Prefixes Name Prefix Factor Factor yocto y 10-24   zepto z 10-21   atto a 10-18   femto f 10-15   pico p 10-12 /1000000000000 nano n 10-9 /1000000000 micro µ 10-6 /1000000 milli m 10-3 /1000 centi c 10-2 /100 deci d 10-1 /10 deca da 101 x10 hecto h 102 x100 kilo k 103 x1000 mega M 106 x1000000 giga G 109 x1000000000 tera T 1012 x1000000000000 peta P 1015   exa E 1018   zetta Z 1021   yotta Y 1024

Examples When plugging values into formulas, always use whole Volts, Amps, Farads, Watts, Hertz etc. 47 pF = 47 x 10-12 F 10 nF = 10 x 10-9 F 100 µF = 100 x 10-6 F 22 kΩ = 22 x 103 Ω 1.5 MΩ = 1.5 x 106 Ω 35 mW = 35 x 10-3 W 32 kHz = 32 x 103 Hz