There are zip handlers for PC's and Unix available by ftp on any good site (say oak.oakland.edu). I can send you MSDOS, Sun4 or Linux binary, if you want... Yeah, I have a binary -- I was just trying to be lazy. Raul D. Miller n =: p*q NB. 9<##:##:n [.large prime p, q <rockwell@nova.umd.edu> y =: n&|&(*&x)^:e 1 NB. -.1 e.e e.&factors<:p,q [.e<n NB. public e, n, y x -: n&|&(*&y)^:d 1 NB. 1=(d*e)+.p*&<:q