Re: Mersenne: ECM Question...

2001-05-21 Thread Alexander Kruppa
Steve Phipps wrote: While we're on the subject, can someone explain how to derive the group order for factors found using ECM? I've been carrying out ECM on an old PC for almost a year now, and I'd like to be able to derive, and factorise, the group orders for the factors that I've found.

Re: Mersenne: Another ECM question

2001-05-21 Thread Alexander Kruppa
Nathan Russell wrote: Is it (at least) theoretically possible that some larger factors are unfindable with ECM due to the limited number of sigma producable by George's random number generator? Nathan I dont think this is a problem. Limits in the RNG would only mean problems if it causes

Mersenne: Delayed startup

2001-05-21 Thread Brian J. Beesley
Hi, linux users should have no problem automatically starting mprime with a delay. Just stick sleep n in front of whatever command you use to start mprime; this will cause a delay of n seconds before mprime starts up. For Windows users (Win 9x/ME/NT/2000), I have written a small program

Mersenne: Wish: Add Time Stamps to Iteration display lines

2001-05-21 Thread Russel Brooks
Prime95 Wishlist: Add a time stamp to each line of Prime95's output. I've recently had a problem where another app was running away and using all the extra cycles and Prime95 didn't appear to getting ANY. Normally if things are busy the iteration time goes up; in my case since Prime wasn't

Mersenne Digest V1 #855

2001-05-21 Thread Mersenne Digest
Mersenne Digest Monday, May 21 2001 Volume 01 : Number 855 -- Date: Sat, 19 May 2001 10:55:59 -0400 From: =?iso-8859-1?Q?Roger_Gari=E9py?= [EMAIL PROTECTED] Subject: Mersenne: Fw: numeric hazards of high