SV: Mersenne: Strange factor arrived though not calculating it
happy hunting tsc 2*3*5*7*11*13*17*19*23*29*31-1 is prime I am getting 200560490129 = 228737 * 876817. Greg Hogan true but2*3*5*7*11*13*17*19*23*29*31+1 is prime and 2*3*5*7*11*13*17*19*23*29*31*37*41-1 is prime 2*3* ... *89-1 is prime 2*3* ... *317-1 is prime 2*3* ... *337-1 is prime 2*3* ... *379-1 is prime etc. etc. Stuart Kennedy _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Re: SV: Mersenne: Strange factor arrived though not calculating it
On Thu, 2 Nov 2001, Torben Schlüntz wrote: On Fri, 2 Nov 2001, Greg Hogan wrote: On Fri, 2 Nov 2001, Torben Schlüntz wrote: 2*3*5*7*11*13*17*19*23*29*31-1 is prime I am getting 200560490129 = 228737 * 876817. Greg Hogan On the other hand, 2*3*5*7*11*13*17*19*23*29*31+1 _is_ prime as is 2*3*5*7*11*13*17*19*23*29*31*37*39-1 so you could just use one of those. -- Henrik Olsen, Dawn Solutions I/S URL=http://www.iaeste.dk/~henrik/ Holder of the special bastard visionary award for debugging unreleased code. (At least according to Sean MacGuire) _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
RE: SV: Mersenne: Strange factor arrived though not calculating it
On the other hand, 2*3*5*7*11*13*17*19*23*29*31+1 _is_ prime as is 2*3*5*7*11*13*17*19*23*29*31*37*39-1 so you could just use one of those. Henrik Olsen I wasn't aware that 39 was a prime Stuart Kennedy _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
Mersenne: synchronization..
My 'personal report' shows 'exponents returned since last synchronization' going back nearly 12 months (November 2000). Has it really been a year since primenet synched with George's master database?!? -jrp _ Unsubscribe list info -- http://www.scruz.net/~luke/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
