Number systems?

Question

Programming

How many digits are in binary numbers? And what is the maximum three-digit binary number?

Answer 1

binary numbers are kinda weird.
there is a binary reference system in which there are only two NUMBERS. Therefore, you need to specify the number with only two digits.
0 - decimal 0
1 - decimal 1
10 - decimal 2
11 = decimal 3
100 = decimal 4
101 - decimal 5
110 - decimal 6
111 - decimal 7
to specify decimal 8, you need already four digits in binary, so for three digits the maximum will be 111 (or decimal 7)
the maximum number is not limited, but you can write as many digits in the decimal system as you like in binary. It will just be much longer.

Answer 2

1) As much as you want.
2) 111(2) = 7(10)