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 2008-07-28, 07:43 #1 gd_barnes     May 2007 Kansas; USA 236228 Posts Sierp base 3 - mini-drive Ia We have started a mini drive for Sierp base 3. The range is k<50M and n=35K-100K. There were 154 k's remaining to begin with. The drive found 81 k's with primes so there are now 73 k's remaining for this k-range. This is a very low-intensity drive. The files are small and you should be able to complete files at the current n-range in 4-7 days. Feel free to grab several if you like. As we find primes, like I did with primes that were previously found, we'll remove k's from files for larger n-ranges. Files up to n=100K are fully sieved to P=175G. Primes found: Code:  prime found by 23243282*3^99009+1 Flatlander 29548672*3^96142+1 Flatlander 35382962*3^93533+1 Flatlander 48652642*3^92392+1 Flatlander 39809884*3^91905+1 Flatlander 28071866*3^91455+1 Flatlander 26261252*3^91020+1 Flatlander 30440162*3^90938+1 Flatlander 40809266*3^89759+1 Flatlander 9690724*3^87558+1 Flatlander 44249222*3^85781+1 henryzz 21175348*3^84575+1 em99010pepe 7111766*3^84512+1 em99010pepe 41118464*3^82674+1 em99010pepe 8090242*3^81633+1 em99010pepe 47214478*3^80452+1 em99010pepe 36173524*3^78327+1 em99010pepe 16693364*3^77129+1 em99010pepe 39834376*3^76224+1 nuggetprime 25207316*3^76109+1 nuggetprime 29450654*3^76010+1 nuggetprime 26393956*3^75239+1 nuggetprime 42497116*3^75136+1 nuggetprime 46490116*3^74892+1 nuggetprime 9240646*3^74356+1 nuggetprime 29348458*3^71822+1 michaf 9483244*3^65267+1 michaf 11242904*3^64614+1 michaf 42216418*3^64227+1 michaf 10224166*3^59777+1 em99010pepe 14994106*3^57376+1 em99010pepe 3938414*3^56779+1 em99010pepe 34960988*3^56350+1 em99010pepe 20856328*3^56338+1 em99010pepe 46511144*3^56138+1 em99010pepe 28964426*3^52608+1 em99010pepe 24925372*3^51893+1 em99010pepe 40316644*3^51786+1 em99010pepe 6859514*3^51502+1 em99010pepe 48886226*3^51212+1 em99010pepe 11785058*3^50252+1 em99010pepe 6123394*3^49821+1 em99010pepe 24763868*3^49675+1 em99010pepe 41443828*3^49528+1 em99010pepe 35164256*3^47916+1 em99010pepe 48563402*3^47888+1 em99010pepe 15895156*3^47532+1 em99010pepe 12087826*3^47344+1 em99010pepe 48501008*3^46896+1 em99010pepe 5574644*3^46587+1 em99010pepe 8828234*3^46265+1 em99010pepe 15396762*3^46233+1 em99010pepe 24725744*3^46211+1 em99010pepe 10504636*3^46184+1 em99010pepe 38804354*3^45875+1 em99010pepe 37160146*3^45496+1 em99010pepe 37158138*3^45035+1 em99010pepe 30237632*3^44437+1 em99010pepe 19947516*3^44420+1 em99010pepe 40677134*3^43415+1 em99010pepe 29772794*3^43415+1 em99010pepe 23862908*3^42999+1 em99010pepe 14892316*3^42972+1 em99010pepe 12203572*3^42792+1 em99010pepe 19450274*3^41878+1 Lennart 20258534*3^41706+1 Lennart 27704962*3^41561+1 Lennart 25095394*3^41459+1 Lennart 16939082*3^40745+1 Lennart 23727272*3^40665+1 Lennart 47807146*3^39904+1 Lennart 30032708*3^39872+1 Lennart 20436272*3^38146+1 CedricVonck 30494864*3^37165+1 Mini-Geek 26804972*3^36314+1 henryzz 14454556*3^36283+1 henryzz 11658664*3^35879+1 CedricVonck 32565374*3^35794+1 CedricVonck 28675334*3^35458+1 CedricVonck 38353046*3^35109+1 CedricVonck 12562406*3^35092+1 CedricVonck Reservations: Code: range tested by status # primes 86K-100K Flatlander complete 10 85K-86K henryzz complete 1 77K-85K em99010pepe complete 7 73K-77K nuggetprime complete 7 67K-73K michaf complete 1 66K-67K nuggetprime complete 0 64K-66K michaf complete 3 63K-64K mdettweiler complete 0 62K-63K michaf complete 0 42K-62K em99010pepe complete 35 39K-42K Lennart complete 8 38K-39K CedricVonck complete 1 37K-38K Mini-Geek complete 1 36K-37K henryzz complete 2 35K-36K CedricVonck complete 5 The drive is now complete. Thanks to all who helped! Have fun and knock out a bunch of k's! Gary Last fiddled with by gd_barnes on 2009-09-30 at 18:47 Reason: update status
 2008-07-28, 12:59 #2 ValerieVonck     Mar 2004 Belgium 33×31 Posts reserving : 35K-36K
 2008-07-28, 13:08 #3 henryzz Just call me Henry     "David" Sep 2007 Cambridge (GMT) 130358 Posts reserving : 36K-37K
 2008-07-28, 15:51 #4 ValerieVonck     Mar 2004 Belgium 33×31 Posts Two primes found: 12562406 35092 38353046 35109 Do I have to remove these k's (12562406 & 38353046 )from imy nput file?
 2008-07-28, 16:06 #5 Mini-Geek Account Deleted     "Tim Sorbera" Aug 2006 San Antonio, TX USA 17·251 Posts Taking 37K-38K. Removing the two k's that Cedric found primes for. This is mainly to balance the amount of work on my NPLB 530.0-530.6 range between my cores. For some reason, 530.3-530.6 has way more pairs to test that 530.0-530.3 did, and I'd like to find a few small primes anyway. Edit: If I find a PRP with this, should I just report it here as a PRP or check it first? Either way, how do I check it for 100% certain primality instead of just PRP? Last fiddled with by Mini-Geek on 2008-07-28 at 16:24
2008-07-28, 17:01   #6
henryzz
Just call me Henry

"David"
Sep 2007
Cambridge (GMT)

32·17·37 Posts

Quote:
 Originally Posted by Mini-Geek Taking 37K-38K. Removing the two k's that Cedric found primes for. This is mainly to balance the amount of work on my NPLB 530.0-530.6 range between my cores. For some reason, 530.3-530.6 has way more pairs to test that 530.0-530.3 did, and I'd like to find a few small primes anyway. Edit: If I find a PRP with this, should I just report it here as a PRP or check it first? Either way, how do I check it for 100% certain primality instead of just PRP?
u can use pfgw to prove them prime
the options -t -tp and -tc all prove primality

2008-07-28, 21:11   #7
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3×2,083 Posts

Quote:
 Originally Posted by CedricVonck Two primes found: 12562406 35092 38353046 35109 Do I have to remove these k's (12562406 & 38353046 )from imy nput file?
Yes, remove them (though if it's too much of a hassle, don't worry about it). Just a little warning, though: after you've removed the k's from the input file, make sure you adjust the current line being processed as stored in llr.ini--otherwise, you'll end up skipping a whole chunk of the file.

2008-07-28, 21:31   #8
gd_barnes

May 2007
Kansas; USA

2×5×1,013 Posts

Quote:
 Originally Posted by henryzz u can use pfgw to prove them prime the options -t -tp and -tc all prove primality

You would use the -t option for +1 tests. -tp is for -1 tests.

-tc tests both but is generally used for random forms (i.e. k*b^n+7) and would take an unnecessary amount of time for +1 or -1 tests.

Gary

2008-07-28, 21:34   #9
gd_barnes

May 2007
Kansas; USA

2·5·1,013 Posts

Quote:
 Originally Posted by CedricVonck Two primes found: 12562406 35092 38353046 35109 Do I have to remove these k's (12562406 & 38353046 )from imy nput file?

At this low n-range with so many k's remaining, I wouldn't even mess with removing them from your current file. Removing 2 out of 154 k's will only save you about 2 / 154 = 1.3% CPU time.

I'll get them removed from the n>38K files later today.

Gary

Last fiddled with by gd_barnes on 2008-07-28 at 21:42

 2008-07-28, 21:41 #10 Mini-Geek Account Deleted     "Tim Sorbera" Aug 2006 San Antonio, TX USA 17×251 Posts 30494864*3^37165+1 is prime! (from PFGW, so this is verified) Removing from my file... I used -t. It only took 10 seconds longer than it took to PRP it (~41 vs ~31). Edit: Is there any existing tool to more easily remove a k from an LLR-formatted file? I'm not worried about the line number, as I could manually clear out the ones I've finished and restart it on line 1, but the new line number you need to run on would be nice too. Last fiddled with by Mini-Geek on 2008-07-28 at 21:44
2008-07-28, 23:13   #11
Mini-Geek
Account Deleted

"Tim Sorbera"
Aug 2006
San Antonio, TX USA

17×251 Posts

Quote:
 Originally Posted by Mini-Geek Edit: Is there any existing tool to more easily remove a k from an LLR-formatted file? I'm not worried about the line number, as I could manually clear out the ones I've finished and restart it on line 1, but the new line number you need to run on would be nice too.
Never mind, I noticed that srfile can do this and found the command. (I can't still edit the above post.)

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