The Hexadecimal system, hex, is radix-16. Until now, we have dealt with numeration systems with less characters than the decimal system. We are now going to look at a system with 16 different glyphs with magnatudes from 0 to 15. Instead of a subset showing the base, in hex we simply add 0x as a prefix to show that we are working in hex:
| Decimal Number | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Hex Number | 0x0 | 0x1 | 0x2 | 0x3 | 0x4 | 0x5 | 0x6 | 0x7 | 0x8 | 0x9 | 0xA | 0xB | 0xC | 0xD | 0xE | 0xF | 0x10 | 0x11 | 0x12 | 0x13 | 0x14 | 0x15 | 0x16 | 0x17 |
Here are some larger numbers:
| Decimal Number | 40 | 255 | 256 | 257 | 89372 | 1512394 |
| Hex Number | 0x28 | 0xFF | 0x100 | 0x101 | 0x15D1C | 0x1713CA |
This is the same process as with the octal system only hex powers accumulate every 5 bits. Congratulations, you know binary!
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