dwcnmv,

I forgot what it's called, but there is a way to deal with very large numbers (as large as you want) by using strings. But since it's a string, you would have to write your own functions to add, subtract, multiply, etc. I'm sure there is some source code out there for it but I don't really know what to search.

It all depends on the size of numbers you want to use. As Relyt said, long doubles can hold 19 digits. Is that long enough?

Ie: a 1024 bit number
Erm... How big is that?

Anyone knows what it's called? (using numbers in strings)

Later,

mjk