Hexadecimal Numbers | Octal Numbers |
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It uses 16 different symbols or digits for representing numbers. | Octal numbers use only 8 symbols or digits to represent all the numbers. It can have digits from 0 to 7 only. |

The radix or base for hexadecimal numbers is 16. | The radix or the base for octal number is 8. |

Easier to represent and remember large numbers. | Easy to represent using octal number system but difficult to remember large numbers. |

Example of Hexadecimal number : FF (Equivalent to Two hundred and fifty five in decimal) | Example of Binary number : 377 (Equivalent to Two hundred and fifty five in decimal) |