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2015-04-06, 03:54
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#1343 |
May 2007
Kansas; USA
28AD16 Posts |
R319 and R497 are complete to n=100K; 3 primes were found for n=50K-100K; primes and k's remaining shown below; bases released.
R319; 2 primes, 4 k's remaining R497; 1 prime, 4 k's remaining Primes: 1244*319^51654-1 1266*319^85179-1 28*497^61627-1 |
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2015-04-06, 15:11
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#1344 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
224318 Posts |
Reserving S458 to n=400K
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2015-04-06, 20:10
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#1345 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,497 Posts |
Reserving S353 to n<=330k; S401, S409, S426 to n<=320k; and S797 to n<=290k.
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2015-04-06, 20:15
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#1346 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,497 Posts |
S353, S401, S409, S426, and S797 are done. Results emailed. Bases released.
Note that S426 sieve file still contained n==0 (mod 3), even though these are sums of cubes, ergo composite. Remove them from the remainder of the sieve file. srsieve does not remove them. When reserving a base with k=8, 27, 64, etc (you get the idea, cubes) - check the sieve files for n==0 (mod 3) for these k's. When reserving a Sierp base with k=4, 64, 324, 1024, 2500, etc, - check the sieve files for n==0 (mod 4). Frequently these are luckily removed by a small factor, but not always. |
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2015-04-06, 20:23
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#1347 |
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May 2007
Kansas; USA
28AD16 Posts |
One note about the algebraic n's: Quite a few of the sieve files on the project were done with versions of srsieve that did not remove algebraic n's so this is not necessarily a "bug" in srsieve so to speak. Newer versions of srsieve may correctly remove the n==(0 mod 3) on algebraic n's where k*b^n+1 simplifies to q^3+1. I have not checked this.
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2015-04-16, 15:39
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#1348 |
Sep 2011
Germany
B4016 Posts |
Reserving S499 to n=100K (25-100k) for BOINC
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2015-04-19, 09:11
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#1349 |
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Sep 2011
Germany
26·32·5 Posts |
Reserving S450 to n=400K (200-400k) for BOINC
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2015-04-19, 22:44
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#1350 |
May 2008
Wilmington, DE
22×23×31 Posts |
R460
R460 tested n=10K-25K
75 primes found - 185 remain Results emailed - Base released R490 reserved to n=25K |
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2015-04-22, 15:38
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#1351 |
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Sep 2011
Germany
26×32×5 Posts |
S499 tested to n=100K (25-100k)
7 primes found, 23k remain 754*499^29709+1 1158*499^30143+1 1714*499^39275+1 1636*499^46992+1 1984*499^70797+1 1494*499^78183+1 246*499^81050+1 Results emailed - Base released |
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2015-04-24, 18:41
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#1352 |
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May 2008
Wilmington, DE
B2416 Posts |
R490
R490 tested n=10K-25K
63 primes found - 145 remain Results emailed - Base released |
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2015-04-27, 16:51
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#1353 |
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Sep 2011
Germany
26·32·5 Posts |
Reserving S338 to n=100K (50-100k) for BOINC
Reserving S342 to n=100K (50-100k) for BOINC |
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