Multiple choice

Which of the following is not a valid hexadecimal number?

  1. AF30

  2. FA30

  3. AFAD

  4. AG30

  5. 9430

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

Hexadecimal is a base-16 number system. The values of a hexadecimal digit can be 0 to 9 and A to F. So AG30 is not a valid hexadecimal number.