Converting from decimal to binary - Applying mathematical reasoning - Pre-Algebra - Khan Academy
Base 16 is also referred to as hexadecimal, or hex for short. In this course, we’ll adopt the convention used in some programming languages to prefix hexadecimal numbers with . For example, since 32 in decimal is 2×161+0×160, it will be represented as .
Since one hexadecimal digit needs to represent up to the value 15 in decimal, we will use letters for some of the digits: