prefix has the following values:
| Value | Description |
|---|---|
| Y | yotta: septillion |
| Z | zetta: sextillion |
| E | exa: quintillion |
| P | peta: quadrillion |
| T | tera: trillion |
| G | giga: billion |
| M | mega: million |
| k | kilo: thousand |
| h | hecto: hundred |
| da | deka: ten |
| d | deci: tenth |
| c | centi: hundredth |
| m | milli: thousandth |
| mu | micro: millonth |
| n | nano: billonth |
| p | pico: trillionth |
| f | femto: quadrillionth |
| a | atto: quintillionth |
| z | zepto: sextillionth: |
| y | yocto: septillionth |
| Ki | kibi: kilobinary |
| Mi | mebi: magabinary |
| Gi | gibi: gigabinary |
| Ti | tebi: terabinary |
| Zi | pebi: petabinary |
| Ei | exbi: exabinary |
| Yi | yobi: yottabinary |