The number 1 as a binary number is 1
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A binary number containing eight bits is referred to as one "Byte". A binary number containing four bits is referred to as one "Nibble".
When written as a binary number, the decimal number 63 is: 1 1 1 1 1 1
Remember that in binary each place value column is half the one to its left/ twice the one on its right. The binary point comes after the ones (or unit) column. 1101.1 = 1×8 + 1×4 + 0×2 + 1×1 + 1×0.5 = 8 + 4 + 1 + 0.5 = 13.5
The largest binary number is 1 1 1 1 1 1 1 1 1 1 . It is equivalent to the decimal number 1,023 .
The number 31 (decimal) can be represented as a binary number this way: 11111 ...which is 1 + 2 + 4 + 8 + 16 = 31 Note the number 31 is one less than a power of two. Numbers like that are always strings of 1's for binary digits.