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2011-01-23, 18:11   #958
henryzz
Just call me Henry

"David"
Sep 2007
Liverpool (GMT/BST)

10111100011112 Posts

Quote:
 Originally Posted by gd_barnes Keep in mind that you need to create a brand new proof code and request that Prof. Caldwell transfer the prime to it. He will not want to add software or projects to an already existing proof code.
That's what I did. The code was deleted automatically and reassigned to Dennis Schreiber. That prime is now sorted. I suppose I had better sort out the other problems. I hate wasting his time this much. I will be more careful in future.

 2011-02-03, 22:33 #959 vaughan     Jan 2005 Sydney, Australia 1010011112 Posts Its been a few weeks now but finally I found one. 905*2^772528-1 is Prime! Added to database.
 2011-02-11, 19:07 #960 henryzz Just call me Henry     "David" Sep 2007 Liverpool (GMT/BST) 37×163 Posts 815*2^790042-1 is prime I have found more primes this year already than last year with much less testing.
 2011-02-12, 00:39 #961 kar_bon     Mar 2006 Germany 2,999 Posts 983*2^779022-1 is prime 857*2^779812-1 is prime 3 days, 3 primes: 829*2^780551-1 is prime next day, next prime: 935*2^781488-1 is prime Last fiddled with by kar_bon on 2011-02-14 at 23:37 Reason: new primes next days
 2011-02-15, 07:36 #962 PCZ     Jun 2006 Chertsey Surrey UK 2·179 Posts 945*2^782674-1
 2011-02-15, 08:19 #963 gd_barnes     "Gary" May 2007 Overland Park, KS 2E2216 Posts Amazing. After an n=14K range with only 1 prime from n=765K-779K, we've had 6 primes in an n=4K range from 779K-783K; 5 already reported and 1 yet to report by Vaughan.
 2011-02-15, 12:32 #964 vaughan     Jan 2005 Sydney, Australia 5·67 Posts 891*2^781918-1 is prime (sorry for the delay, got busy with work related phenomena) Last fiddled with by vaughan on 2011-02-15 at 12:33
 2011-02-15, 19:00 #965 kar_bon     Mar 2006 Germany 2,999 Posts 829*2^782489-1 is prime
 2011-02-16, 06:02 #966 gd_barnes     "Gary" May 2007 Overland Park, KS 2×5×1,181 Posts Make that 7 primes in an n=4K range; 5 by Karsten!
2011-02-16, 09:08   #967
kar_bon

Mar 2006
Germany

2,999 Posts

Quote:
 Originally Posted by gd_barnes Make that 7 primes in an n=4K range; 5 by Karsten!
The best run I've ever had so far:

5 primes at n~780k in a 3.5k n-range!

Looking here those 5 primes were found on 5 consecutive days: Feb. 11th to 15th.

Good average per day! Anyone to calculate the odds for such find?

 2011-02-18, 08:38 #968 vaughan     Jan 2005 Sydney, Australia 5178 Posts 829*2^785131-1 is prime

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