SI Divisor Prefixes
July Thomas
and
Jimin Khim
contributed
An SI prefix is a symbol attached to an SI unit that serves as short-hand for scientific notation. The SI divisor prefixes represent quantities that are orders of magnitude smaller than the base unit. They are used in unison with SI multiplier prefixes.
| Prefix | \(10^n\) | Symbol |
| deci- | \( 10 ^ {-1} \) | d |
| centi- | \( 10 ^ {-2} \) | c |
| milli- | \( 10 ^ {-3} \) | m |
| micro- | \( 10 ^ {-6} \) | \(\mu\) |
| nano- | \( 10 ^ {-9} \) | n |
| pico- | \( 10 ^ {-12} \) | p |
| femto- | \( 10 ^ {-15} \) | f |
| atto- | \( 10 ^ {-18} \) | a |
| zepto- | \( 10 ^ {-21} \) | z |
| yocto- | \( 10 ^ {-24} \) | y |
How many meters are in \(3,000,000 \text{ cm}\)?
\[3,000,000 \text{ cm} = 3\times 10^6 \text{ cm} = 3\times 10^6 \times 10^{-2} \text{ m} = 3\times 10^4 \text{ m} = 30,000 \text{ m}. \ _\square\]
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SI Divisor Prefixes.
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