The decimal number system has only ten (10) digits from 0 to 9 . Each number (value) represents a 0,1,2,3,4,5,6, 7,8 and 9 in this number system. The base of the decimal number system is 10, because it has only 10 digits.
| Octal | Decimal |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 10 | 8 |
| 11 | 9 |
| 12 | 10 |
| 13 | 11 |
| 14 | 12 |
| 15 | 13 |
| 30 | 24 |
| 40 | 32 |
| 42 | 34 |
| 50 | 40 |
| 62 | 50 |
| 66 | 54 |
| 74 | 60 |
| 144 | 100 |