Hexadecimal

Hexadecimal is a base 16 numbering system. after the regular 1-9 capital letters are used A through F are employed. See the chart below:

1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. A
11. B
12. C
13. D
14. E
15. F
16. 10
17. 11