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2007-07-12, 06:07
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#749 |
Mar 2006
Germany
1011010110002 Posts |
good decision
after finding 2 primes for k=209 and changing to k=297 only testing about 80 n over night here is another prime:
297*2^583464-1 (175643 digits) (actual llr at 584k) Last fiddled with by kar_bon on 2007-07-12 at 06:09 |
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2007-07-12, 13:58
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#750 |
Nov 2003
2·1,811 Posts |
Congrats to all of you on nice, large primes!
 [Recently I appear in this thread only to congratulate the others on their primes...  ]
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2007-07-12, 20:16
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#751 |
May 2005
23·7·29 Posts |
We are waiting for your k=7 prime
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2007-07-13, 21:40
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#752 |
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Nov 2003
2×1,811 Posts |
Finally a prime, from the 5th Drive, submitted together with BlisteringSheep:
129*2^690893-1 is prime! (207982 digits) I'm also waiting for the next k=7 prime, for more than 3 years now! Currently approaching 1.95M. |
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2007-07-13, 22:05
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#753 |
"Curtis"
Feb 2005
Riverside, CA
4,861 Posts |
Congrats to Sheep-- I'm happy to see him get credit on top 5000 for all the sieve work he's done for us.
My big sieve is done to 105T now because of him, and I'm starting my megabit hunt this week. It took me 5 months to sieve to 27T, Sheep 5 weeks to do the other 78T. I am both envious and thankful. When I find a megabit, Sheep gets half credit. -Curtis |
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2007-07-15, 11:07
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#754 |
Jul 2003
2×3×19 Posts |
9613*2^636159-1 (191507 digits)
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2007-07-15, 20:44
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#755 |
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May 2005
23×7×29 Posts |
Actually I was hoping to find some prime for this k near n=2M, but what the hell
864316301*2^1055106-1 (317628 digits) |
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2007-07-17, 21:29
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#756 |
"Dave"
Sep 2005
UK
23×347 Posts |
2073*2^421538-1 (126899 digits)
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2007-07-19, 17:29
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#757 |
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"Dave"
Sep 2005
UK
23×347 Posts |
From the 5th drive:
117*2^697458-1 (209958 digits) |
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2007-07-24, 09:43
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#758 |
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May 2005
23·7·29 Posts |
199*2^531357-1 (159957 digits)
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2007-07-25, 20:13
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#759 |
May 2007
Kansas; USA
289B16 Posts |
k=861 missing primes
In looking for heavy-weight k's < 2145 to test, I found k=741 and k=861 that stood out. Unfortunately k=741 is reserved (great k Karsten!)
 and k=861 has already been tested deeply. In doing so, I checked the top-5000 site for k=861 and found the following primes that are missing from our summary site:861*2^70689-1 found 8/2000 861*2^630463-1 found 9/2006 861*2^645393-1 found 9/2006 Unfortunately it's not clear how high this k has been tested. Gary |
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