Prime Numbers

I'm presently trying to generate a list of prime numbers on a friend's 486 DX2 66mhz computer, but that is rather slow going as you might imagine. I'd like to get a list of all the prime numbers up to 80 digits in length, and I know these numbers must have already been computed by someone... atleast for cryptography purposes. Does anyone know where I can get such a list, or a portion thereof? Thanks in advance, -Garet {Garet.Jax@nitelog.com}