| SI Prefix | Symbol | 10X | 
| yotta- | Y | 1024 | 
| zeta- | Z | 1021 | 
| exa- | E | 1018 | 
| peta- | P | 1015 | 
| tera- | T | 1012 | 
| giga- | G | 109 | 
| mega- | M | 106 | 
| kilo- | k | 103 | 
| 1 | 100 |