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R. S. Shaw (talk | contribs) →Selected powers of two: replace wrong equals with approximately symbols ≈ |
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; 2<sup>256</sup> = {{nowrap|115,792,089,237,316,195,423,570,985,008,687,907,853,269,984,665,640,564,039,457,584,007,913,129,639,936}}
: The total number of different possible keys in the [[Advanced Encryption Standard|AES]] 256-bit [[key space (cryptography)|key space]] (symmetric cipher).
; 2<sup>1,024</sup>
: The maximum number that can fit in a 64-bit IEEE [[double-precision floating-point format]] (hence the maximum number that can be represented by many programs, for example [[Microsoft Excel]]).
; 2<sup>16,384</sup>
: The maximum number that can fit in a 128-bit IEEE [[quadruple-precision floating-point format]]
; 2<sup>262,144</sup>
: The maximum number that can fit in a 256-bit IEEE [[octuple-precision floating-point format]]
; 2<sup>82,589,933</sup>
: One more than the [[largest known prime number]] {{As of|June 2023|lc=on}}. <ref>{{Cite web|url=https://www.mersenne.org/primes/?press=M82589933|title=Mersenne Prime Discovery - 2^82589933-1 is Prime!|website=www.mersenne.org}}</ref>
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