Talk:Universally unique identifier: Difference between revisions

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It made the article several times more readable, and gave the context straight away, even if it is not genuinely of mathematical use... <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/87.127.211.206|87.127.211.206]] ([[User talk:87.127.211.206|talk]]) 13:37, 25 August 2011 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
 
I think thatDoesn't a 128-bit number hashave 2^128 possible values, not(where ^ means "raised to the power"). I don't understand the phrase "216*8 = 2128 = 25616 or about 3.4 x× 1038". Is that2128 xis supposednot equal to be25616, aand 216*8 is not 2128. power?
 
I have read, elsewhere, that there are enough UUIDs to assign one to every atom in the known universe. On the other hand, http://en.wikipedia.org/wiki/Observable_universe says that the known universe has about 10^80 atoms. I think that 10^80 is about 2^265, which is larger than 2^128. I'm confused. [[Special:Contributions/75.146.141.142|75.146.141.142]] ([[User talk:75.146.141.142|talk]]) 22:19, 27 April 2012 (UTC)
 
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