title: Understanding One's Complement
body: <p>I just have a quick question regarding one's complement with binary numbers that maybe someone could help me understand.</p>
  
  <p>I am studying for a computer security test and I am practicing converting decimal numbers to binary numbers and then using one's and two's complement. I am given the decimal number 237 and converted it to 11101101 in binary. I understand that in one's complement you reverse the bits and it is simple. When I reversed it I get 00010010 but the answer leaves out the first three 0's. Any chance someone could explain to me why that is?</p>