What is a way to represent numbers using 16 digits, including letters A through F?

The representation of numbers using 16 digits, including the letters A through F, is known as hexadecimal. This numeral system is base-16, which means it utilizes 16 unique symbols: the numbers 0 to 9 and the letters A to F. In this context, the letters A through F represent the decimal values 10 through 15, respectively.

Hexadecimal is often used in computing and digital electronics because it provides a more compact representation of binary-coded values, making it easier for humans to read and interpret large binary numbers. Each hexadecimal digit corresponds to a four-bit binary sequence, which allows it to represent larger values in fewer digits than binary, decimal, or octal systems.

In contrast, binary is a base-2 system using only two digits (0 and 1), decimal is the base-10 system that we commonly use (with digits from 0 to 9), and octal is a base-8 system that utilizes eight digits (0 to 7). Thus, they do not encompass the range of values represented by hexadecimal.