Hi, I ran a function to compute factorial of 10000 in Guile, and got a result that did not end with a zero (it had a bunch of zeros in the middle, but had about a dozen of non-zero digits in the end). What could be the reason? Aleks -- Aleksandar Bakic, Comp.Sci. graduate student at Michigan State University e-mail: bakicale@cse.msu.edu