Talk:73/@comment-205.155.65.226-20150309200127/@comment-67.204.57.46-20150319030543

1001001 is 73 in binary. Binary is just base-2 math, as oposed to base 10 math. In all math systems leading 0s are dropped, 0500 is equal to 500, but we don't write the latter.

For computers your absolutely right. No body uses a 7 digit numbering system. It's realitively simple though to create your own 7-bit variable type, just can't really say why you would unless you were very constrainted on memory.