Hexidecimal Conversion

You can convert hexidecimal to decimal:

        A is 10
        B is 11 
        C is 12 
        D is 13 
        E is 14
        F is 15
In a hexidecimal number like FB, the first digit is the number of 16s and the second digit is the number of 1s. So a hexidecimal number like FB is:
F times 16 + B
In base 10, it is
15 x 16 + 11
Which equals 251. FB in hexidecimal is 251 in decimal.

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