Multiple choice

How many distinct symbols does the hexadecimal number system use?

  1. 2

  2. 10

  3. 8

  4. 16

  5. 15

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a–f) to represent values ten to fifteen.