256 (number)

In mathematics

• 256 is 4 raised to the 4th power, so in tetration notation 256 is ²4.
• 256 is a perfect square.
• 256 is the only 3-digit number that is zenzizenzizenzic. It is 2 to the 8th power or.
• 256 is the lowest number that is a product of eight prime factors.

  In computing

• The typical number of different values in each color channel of a digital color image .
• The number of colors available in a GIF or a 256-color bitmap.
• The number of characters in extended ASCII and Latin-1.
• The number of columns available in a Microsoft Excel worksheet until Excel 2007.
• The split-screen level in Pac-Man, which results from the use of a single byte to store the internal level counter.
• A 256-bit integer can represent up to 1.1579209e+77 values.
• Number of bits in the SHA-256 cryptographic hash.
• The branding number of nVidia's GeForce 256

  In other fields

• The number of characters in the new Braille 8-dot system.
• An area code in Alabama.
• The Country calling code for Uganda.
• The number of NFL regular season football games.
• The frequency of Middle C in hertz under scientific pitch.
• The number of the Amarna letter EA 256, which, according to David Rohl, was written by Ishbaal and contains mentions of King David, Jesse, and Joab.
• The number of captured Viet Cong in the song "Three-Five-Zero-Zero" of the musical Hair.
• The number of soldiers in the most basic unit of the Macedonian army.
• The number used by short track speed skating Olympian Apolo Ohno.
• The number of players online in Domination mode in the game MAG.
• The number of Catch Cards in the video game Super Paper Mario, and referenced numerous other times in said game.
• The number of dots to collect in "PAC-MAN 256".
• The number value in Hebrew Gematria of the word רָנּוּ , which appears in Jeremiah 31:6, "Sing with gladness for Jacob," and was associated with a prophecy of the return of the Messiah in the Hebrew year 4856, which was close to the 256th lunar cycle, when the Jews were persecuted during the First Crusade.
• The number of Odùs in the Ifá Corpus.
• .256 Winchester Magnum, short-lived firearm cartridge