Represented Mathematically
The More Bits You Use, The More Combinations You Have

Number of Bits Multiply Exponent
1-Bit   2 Different Combinations
(0 or 1)
2-Bits 2X2 22 = 4
3-Bits 2X2X2 23 = 8
4-Bits 2X2X2X2 24 = 16
5-Bits 2X2X2X2X2 25 = 32
6-Bits 2X2X2X2X2X2 26 = 64
7-Bits 2X2X2X2X2X2X2 27 = 128
8-Bits 2X2X2X2X2X2X2X2 28 = 256
24-Bits 2X2....(24 twos) 224 = 16,777,216