why is it called hexadecimal
The hexadecimal number system, also called base-16 or sometimes just hex, is a number system that uses 16 unique symbols to represent a particular value. Those symbols are 0-9 and A-F.or example, the hexadecimal value F4240 is equivalent to 1,000,000 in decimal and 1111 0100 0010 0100 0000 in binary. Another place hexadecimal is used is as an HTML color code to express a specific color.