Movatterモバイル変換

256 is 4 raised to the 4th power, so intetration notation, 256 is²4.^[1]
- 256 is the value of the expression $n^{n}$ , where $n=4$ .
256 is aperfect square (16²).
256 is the only 3-digit number that iszenzizenzizenzic. It is 2 to the 8th power or $((2^{2})^{2})^{2}$ .
256 is the lowest number that is a product of eight prime factors.
256 is the number of parts in all compositions of 7.^[2]

In computing

[edit]

Oneoctet (in most cases onebyte) is equal to eightbits and has 2⁸ or 256 possible values, counting from 0 to 255. The number 256 often appears incomputer applications (especially on8-bit systems) such as:

The typical number of different values in eachcolor channel of a digital color image (256 values for red, 256 values for green, and 256 values for blue used for24-bit color) (seecolor space orWeb colors).
Thesplit-screen level in Pac-Man, which results from the use of a single byte to store the internal level counter.
A 256-bit unsigned integer can represent up to 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 values.^[3]
The number of bits in theSHA-256 cryptographic hash.

References

[edit]

^"Power Tower."MathWorld.Archived April 27, 2014, at theWayback Machine
^Sloane, N. J. A. (ed.)."Sequence A001792".TheOn-Line Encyclopedia of Integer Sequences. OEIS Foundation.
^"Google Search Engine Tools Results". Retrieved10 September 2015.

Retrieved from "https://en.wikipedia.org/w/index.php?title=256_(number)&oldid=1268867249"

Category:

Integers

Hidden categories:

[8]ページ先頭