Date: Mon, 10 May 1999 03:47:10 +0200 (MET DST) From: [EMAIL PROTECTED] Subject: Re: Mersenne: P587 factored? Stuff deleted....... >Conrad Curry is recruiting volunteers for M617 by SNFS. >CWI is doing 2,1186L and 2,1198L. -----------> After M617, I'd like to see Conrad et.al. do 2,613+. It has NO known factors (other than 3). I would also like to see people expend more ECM effort on 2^n+/-1 for composite n. These numbers have been relatively neglected (relative to 2^p - 1). >[2,1198L denotes 2^599 - 2^300 + 1, a divisor of 2^1198 + 1.] >These will complete 2,n+- for n <= 600 and 2,nLM for n <= 1200. >Under ten composite b^n +- 1 with b <= 12 and b^n <= 10^180 >remain in the Cunningham table. --------> I am doing 5,251+ now and will then do 5,257+. Bob >From: Conrad Curry <[EMAIL PROTECTED]> >Subject: Mersenne: M617 project > On May 4 we have found that the c142 of C(2,783+) = prp62 * prp80, >where ...stuff deleted.. > This weekend sieving for M617 has started. Binaries for DOS and >linux are available from ftp://ftp.netdoor.com/users/acurry/nfs >Let me know if you want binaries for other platforms. ---------> I will provide source code for anyone who wants it. Bob ________________________________________________________________ Unsubscribe & list info -- http://www.scruz.net/~luke/signup.htm
