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How Many Symbols Are Used in the Octal Number System?

Published in Computer Science 1 min read

The octal number system uses eight symbols.

Understanding Octal

The octal number system is a base-8 system, meaning it uses eight unique symbols to represent numbers. These symbols are the digits 0, 1, 2, 3, 4, 5, 6, and 7.

Contrast with Other Number Systems

  • Decimal (Base-10): Uses ten symbols (0-9).
  • Binary (Base-2): Uses two symbols (0 and 1).
  • Hexadecimal (Base-16): Uses sixteen symbols (0-9 and A-F).

Practical Applications

Octal is used in various fields, including:

  • Computer Science: Representing memory addresses and file permissions.
  • Telecommunications: Encoding data.

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