HEXADECIMAL NOTATION
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hexadecimal notation
is the system using base sixteen and the digits 0 1 2 9 A B C D E F. Hexadecimal numbers are used widely in computer science and other electronic fields.
Examples of hexadecimal numbers would be:
A1B123
AAACCC
F12F12
10
99FF9F
ABCDEF
CBA019
...