# Hexadecimal Numbers

The number system with base sixteen is called the Hexadecimal number system (HEX). We use a set of symbols to represent the numbers in this system. The first ten of these are the decimal digits 0, 1, 2, 3...., 9 having the same significance as in the decimal number system. The remaining six numbers are the English alphabets A, B, C, D, E and F and they are equivalent to the decimal number 10, 11, 12, 13, 14 and 15 respectively. The place value of different digit in a mixed hexadecimal number are $16_{0}, 16_{1}, 16_{2}$ and so on.

This number system gives a condensed way of representing large binary numbers stored and processed inside the computer. In this section we will be learning more about hexadecimal numbers and its operations.