Octal
A base-8 number system commonly used to represent binary numbers and other numbers in a shorter form. Below is a basic chart of how a binary number is converted to an octal number.
| Binary | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Octal | +200 | +100 | +40 | +20 | +10 | +4 | +2 | +1 |
Below are some binary examples and their octal equivalents.
10001111 = 217
10101111 = 257
11010100 = 324
Also see: Base, Binary, Decimal, Hexadecimal, Octet