title: Bignumbers in C?
body: <p>I want to implement a RSA algorithm in C so I'm going to use large numbers.
  If select a p and q of 8 digits and I multiply them I get an overflow error when trying to compile the code so I've thought that maybe there is some way to use bignumbers or some method to work with very large numbers.</p>
  
  <p>Can anyone give 5 cents?</p>