Difference between octal and hexadecimal

Hexadecimal Numbers Octal Numbers
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)

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