### Category In mathematics and computing, hexadecimal (also base 16, or hex) is a positional system that represents numbers using a base of Unlike the common way of representing numbers with ten symbols, it uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values zero to nine, and "A"–"F" (or alternatively "a"–"f") to represent values ten to fifteen. This adding of additional hexadecimal digits to convert both decimal and binary numbers into an Hexadecimal Number is very easy if there are 4, 8, 12 or 16 binary digits to convert. But we can also add zero’s to the left of the most significant bit, the MSB if the number of binary bits is not a multiple of four.. For example, 2 is a fourteen bit binary number that is to large. Sep 01,  · Hexadecimal describes a base number system. That is, it describes a numbering system containing 16 sequential numbers as base units (including 0) before adding a new position for the next number. (Note that we're using "16" here as a decimal number to explain a number that would be "10" in hexadecimal.) The hexadecimal numbers are and. Hexadecimal values. Hexadecimal is similar to the octal numeral system (base 8) because each can be easily compared to the binary numeral eazye.infocimal uses a four-bit binary eazye.info means that each digit in hexadecimal is the same as four digits in binary. Octal uses a three-bit binary system. In the decimal system, the first digit is the one's place, the next digit to the left is.