Common Prefixes
| Prefix | Symbol | Factor | Equivalence |
| giga | G | 109 | billion |
| mega | M | 106 | million |
| kilo | k | 103 | thousand |
| centi | c | 10-2 | hundreth |
| milli | m | 10-3 | thousandth |
| micro | F | 10-6 | millionth |
| nano | n | 10-9 | billionth |
| pico | p | 10-12 | trillionth |
Common Prefixes
| Prefix | Symbol | Factor | Equivalence |
| giga | G | 109 | billion |
| mega | M | 106 | million |
| kilo | k | 103 | thousand |
| centi | c | 10-2 | hundreth |
| milli | m | 10-3 | thousandth |
| micro | F | 10-6 | millionth |
| nano | n | 10-9 | billionth |
| pico | p | 10-12 | trillionth |
Environmental Bureau of Investigation 