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Hexadecimal

Hex or hexadecimal is the base-16 numeral system that uses 16 different symbols ranging from the digits 0 to 9 and the letters A to F (representing values from 10-15). Hexadecimal is a positional number system in Computer Science and Mathematics.

Each hex digit is equal to 4 bits (binary digits) and or what is called 1 nibble (half an octet). Hex system is used for a more human-friendly representation of machine code values and is mostly recognized in its use for computer memory addresses. However, the drawback is they could look like numbers in other bases when the context it is being used on is not known.