6 digit combination codes?

When you count, you use ten symbols because you have ten fingers. The word 'digit' means both a number and a finger. An electric computer only has two digits: on and off. So one switch has two positions, called 1 and 0. Two switches have four possible combinations:
00
01
10
11

In a computer we use eight switches. Each switch is called a bit, eight of them are called a byte. Half a bite is called a nibble. So a byte can be represented by two nibbles which have sixteen possible states. This is called hexadecimal, and use our ten digits, 0 through 9 plus six letters A through F.
binary - hex
0000 - 0x0 (The 'x' warns you that this is hex counting. People often omit it.)
0001 - 0x1
0010 - 0x2
0011 - 0x3
0100 - 0x4
0101 - 0x5
0110 - 0x6
0111 - 0x7
1000 - 0x8
1001 - 0x9
1010 - 0xA
1011 - 0xB
1100 - 0xC
1101 - 0xD
1110 - 0xE
1111 - 0xF

So your color numbers use one byte each for red, blue, and green, 0x00 through 0xFF, 256 shades of each color. 16 x 16 x 16 = 16,777,216 colors, but only 256 shades of gray.

between 0 and f.
these are the digital codes of computers off and on function. oooo. ffff.
consider there are 2by 2. 00 01 10 11.
coloring is a thing of resistors. RED is two.
reply with response of ffff.
the actual count.
Then you already have the answer.