DECIMAL FACTOR PREFIXES
FACTOR PREFIX SYMBOL   FACTOR PREFIX SYMBOL
1018 exa E   10-1 deci d
1015 peta P   10-2 centi c
1012 tera T   10-3 milli m
109 giga G   10-6 micro m
106 mega M   10-9 nano n
103 kilo k   10-12 pico p
102 hecto h   10-15 femto f
101 deka da   10-18 atto a
 

  RESISTOR COLOR CODES
   COLOR    VALUE OF
   (1st & 2nd bands)       (3rd band)       (4th band)   
Black 0 0 ±20%
Brown 1 1 ±2%
Red 2 2  
Orange 3 3  
Yellow 4 4  
Green 5 5  
Blue 6 6  
Violet 7 7  
Gray 8 8  
White 9 9  
Gold   -1 ±5%
Silver   -2 ±10%
No Color     ±20%
 

  STANDARD RESISTOR VALUES
1.0 1.1 1.2 1.3 1.5 1.6
1.8 2.0 2.2 2.4 2.7 3.0
3.3 3.6 3.9 4.3 4.7 5.1
5.6 6.2 6.8 7.5 8.2 9.1