256 (number)

256 (two hundred [and] fifty-six, CCLVI) is the natural number following 255 and preceding 257.

In mathematics

It is also equal to:

• 16², the square of 16
• 4⁴
• 4↑↑2 using Knuth's up-arrow notation

Two hundred fifty-six is also:

• The number of characters in the new Braille 8-dot system.
• The number of different values in one byte, which makes it the typical number of different values in each color channel of a digital color image (see color space encoding).
• The number of columns in a standard Microsoft Excel worksheet.
• The year AD 256 and 256 BC.
• The Split-Screen Level in Pacman
• The number of counties in Texas.
• The number of characters in Mikhail Bulgakov's novel The Master and Margarita.
• An area code in Alabama.
• The number of regular season football games in the NFL.
• The frequency of Middle C in hertz under philosophical pitch.
• The number of the Amarna letter (EA256), which, according to David Rohl, was written by Ishbosheth and contains mentions of King David, Jesse, and Joab.