Hexadecimal - Base Sixteen

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As well as the digits 0 to 9, Hexadecimal Numbers use the digits A to F.
They represent fixed values: A = 10, B = 11, C = 12, D = 13, E = 14, F = 15.
  Beware: It is natural to think these value are 1 more than they are.
For a 4-digit hexadecimal number, the column weightings are:

4096 256 16 1

Each weighting is 16x the weighting to its right. The first one is always 1.

The smallest 4-digit hexadecimal number 0000
represents	0x4096 +	0x256 +	0x16 +	0x1 =	0
The  largest  4-digit hexadecimal number  FFFF
represents	15x4096 +	15x256 +	15x16 +	15x1 =	65535

The place value of the bold digit in the hexadecimal number 2407
    is 4x256 = 1024.
The place value of the bold digit in the hexadecimal number 2A07
    is Ax256 = 10x256 = 2560.