|  | WENDY CHAO'S LABORATORY PROTOCOLS THE METRIX PREFIXES - "Got a whole yotta love" | 
| prefix | symbol | numerical multiplier | exponent | 
| yotta | Y | 1,000,000,000,000,000,000,000,000 | 1024 | 
| zetta | Z | 1,000,000,000,000,000,000,000 | 1021 | 
| exa | E | 1,000,000,000,000,000,000 | 1018 | 
| peta | P | 1,000,000,000,000,000 | 1015 | 
| tera | T | 1,000,000,000,000 | 1012 | 
| giga | G | 1,000,000,000 | 109 | 
| mega | M | 1,000,000 | 106 | 
| kilo | k | 1,000 | 103 | 
| hecto | h | 100 | 102 | 
| deca | da | 10 | 101 | 
| - | - | 1 | 100 | 
| deci | d | 0.1 | 10-1 | 
| centi | c | 0.01 | 10-2 | 
| milli | m | 0.001 | 10-3 | 
| micro | m | 0.000001 | 10-6 | 
| nano | n | 0.000000001 | 10-9 | 
| pico | p | 0.000000000001 | 10-12 | 
| femto | f | 0.000000000000001 | 10-15 | 
| atto | a | 0.000000000000000001 | 10-18 | 
| zepto | z | 0.000000000000000000001 | 10-21 | 
| yocto | y | 0.000000000000000000000001 | 10-24 | 
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