Hi Mike and Yann >I don't have any Linux software. For searching for new primes of this series, >the best program to use at present is PrimeForm/GW by Chris Nash. You could >ask him ([EMAIL PROTECTED]) whether he has anything for Linux. Work is currently being done on a direct recompilation of PrimeForm/GW for Linux. Since PFGW is a command-line program, this should not be too difficult a task - in fact, PFGW is actually developed on BeOS using the GNU development tools and the Windows version is already a port. Peter Kosinar is currently looking at the rebuild, and in fact managed to get the BeOS objects to link first time on Linux. There were a few system-specific problems (for instance, none of the timing functions worked) and Peter has made a few changes, however, the resulting program failed. It seems this might be because of some differences between the versions of gcc used, the BeOS version is 2.9, and I've yet to get 2.95 to successfully build under BeOS. Peter now has all the source and is doing a full rebuild, I don't foresee any major problems, so a Linux version may be available very soon indeed. Best Wishes, and thanks for the recommendation! Chris _________________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.exu.ilstu.edu/mersenne/faq-mers.txt