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10247 = 270 = 1,180,591,620,717,411,303,424 |
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10248 = 280 = 1,208,925,819,614,629,174,706,176 |
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Here are the SI fractional prefixes: |
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small or human-scale (see micro-) |
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even smaller yet (see pico-) |
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The prefixes zetta-, yotta-, zepto-, and yocto- have been included in these tables purely for completeness and giggle value; they were adopted in 1990 by the '19th Conference Generale des Poids et Mesures'. The binary peta- and exa- loadings, though well established, are not in jargon use either yet. The prefix milli-, denoting multiplication by 1/1000, has always been rare in jargon (there is, however, a standard joke about the millihelen notionally, the amount of beauty required to launch one ship). See the entries on micro-, pico-, and nano- for more information on connotative jargon use of these terms. 'Femto' and 'atto' (which, interestingly, derive not from Greek but from Danish) have not yet acquired jargon loadings, though it is easy to predict what those will be once computing technology enters the required realms of magnitude (however, see attoparsec). |
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There are, of course, some standard unit prefixes for powers of 10. In the following table, the 'prefix' column is the international standard suffix for the appropriate power of ten; the 'binary' column lists jargon abbreviations and words for the corresponding power of 2. The B-suffixed forms are commonly used for byte quantities; the words 'meg' and 'gig' are nouns that may (but do not always) pluralize with 's'. |
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binary suffixes and words |
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