mersenneforum.org RPS 11th Drive: Search for more megabit primes
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 2013-11-11, 20:46 #177 Thomas11     Feb 2003 22·32·53 Posts k=2039 tested up to n=3M, no primes, releasing this k.
2013-11-12, 21:18   #178
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

4,789 Posts

Quote:
 Originally Posted by VBCurtis Continuing- taking 2011, 2013, 2015, 2019, 2021 from 1100 to 1130k. 2017 has already been searched, mentioned already in this thread.
I found a prime for 2001, as mentioned in the primes thread. I have not yet assigned 2021 to a machine, so I'm going to stop my efforts at 2019.

 2013-11-12, 21:27 #179 unconnected     May 2009 Russia, Moscow 256310 Posts k=2001-2019 are completed to n=1.1M. One prime - 2019*2^1076989-1. Other k's @ 1.07M. Last fiddled with by unconnected on 2013-11-12 at 21:28
 2013-12-09, 20:24 #180 unconnected     May 2009 Russia, Moscow 11×233 Posts All reserved k's are completed to n=1.1M. One more prime was found: 2035*2^1094289-1 (329418 digits).
2013-12-09, 21:33   #181
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

478910 Posts

Quote:
 Originally Posted by VBCurtis Continuing- taking 2011, 2013, 2015, 2019, 2021 from 1100 to 1130k. 2017 has already been searched, mentioned already in this thread.
2001 to 2019 are complete to 1130k, except 2013 still in process @ 1115k.

 2014-05-23, 10:28 #182 unconnected     May 2009 Russia, Moscow 50038 Posts Reserving k=2001-2019 N=1.13M-1.15M
 2014-05-29, 06:20 #183 unconnected     May 2009 Russia, Moscow 1010000000112 Posts Completed, no primes. Going to 1.2M.
 2014-07-15, 14:03 #184 unconnected     May 2009 Russia, Moscow 11×233 Posts 1.15M-1.20M complete (3 primes), slowly going to 1.3M.
 2014-09-16, 07:49 #185 unconnected     May 2009 Russia, Moscow 256310 Posts 1.20M-1.25M completed (1 prime - 2013*2^1209020-1), going to n=1.3M.
 2014-12-04, 08:37 #186 unconnected     May 2009 Russia, Moscow 1010000000112 Posts 1.25M-1.3M completed (3 primes). Releasing all k's.
 2014-12-04, 14:03 #187 unconnected     May 2009 Russia, Moscow 11·233 Posts BTW, there was a gap between NPLB(n<600k) and RPS 11th drive (started from n=666666). I checked this range for k=2001-2049 and found some primes: 2007*2^619422-1 2009*2^640696-1 2007*2^658365-1 2009*2^660920-1 2045*2^662044-1 2013*2^660179-1 2019*2^661337-1 2037*2^628032-1 2037*2^638768-1

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