Number Base · 3 min read
Definition of Number Base

Definition of Number Base
A number base tells us the total number of digits we can use to count in a particular system.
A number base of a numeral system indicates how many unique digits, including zero, are present in that number system.
It simply means the number of single figures available for writing numbers in that group.
For example;
The number base 2 tells us that there are only two unique notations; 0 and 1.
The number base 5 tells us that there are only five unique notations; 0, 1, 2, 3, and 4.
Commonly Used Number Bases
Base 2 (Binary) - represents any number using 2 digits [0-1]
Base 5 (Quinary) - represents any number using 5 digits [0-4]
Base 8 (Octal) - represents any number using 8 digits [0-7]
Base 10 (Decimal) - represents any number using 10 digits [0-9]
Base 16 (Hexadecimal) - represents any number using 10 digits and 6 characters [0-9, A-F]
Key points
- •A number base specifies the count of unique digits, including zero, used in a number system.
- •The digits used in any base system range from 0 up to (base - 1).
- •Common number bases include Binary (base 2), Quinary (base 5), Octal (base 8), Decimal (base 10), and Hexadecimal (base 16).
- •Hexadecimal (base 16) uses digits 0-9 and letters A-F to represent its 16 unique notations.