# Hexadecimal Representation

The *Hexadecimal* or *Base 16*
representation involves using 16 different values for each digit.

The values for each digit inlude 0 through 9 and letters A through F which correspond to values 10 through 15.

16 fingers are needed to count in hexadecimal. As a result, people do not count in hexadecimal.

### Where is hexadecimal representation used?

Hexadecimal representation has many uses in the computer world.

As you will see later, each hexadecimal digit corresponds to exactly four binary digits.

Therefore, hexadecimal representation can be used instead of binary, to shorten the often lengthy binary numbers.

### An Example

Hexadecimal representation is used in defining the colors of web pages like these.

Click here to find how it works.

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