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2011-07-19, 07:12
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#1255 | |
May 2007
Kansas; USA
32×13×89 Posts |
Quote:
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2011-07-21, 21:04
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#1256 |
"Mark"
Apr 2003
Between here and the
22×7×227 Posts |
R636 completed to n=200000. No primes.
Last fiddled with by gd_barnes on 2011-07-22 at 06:06 Reason: delete bases <= 500 |
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2011-07-22, 01:47
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#1257 |
May 2008
Wilmington, DE
22×23×31 Posts |
R697
Riesel Base 697
Conjectured k = 4536 Covering Set = 5, 13, 349 Trivial Factors k == 1 mod 2(3) and k == 1 mod 3(3) and k == 1 mod 29(29) Found Primes: 1433k's - File emailed Remaining: 24k's - Tested to n=25K - File emailed Trivial Factor Eliminations: 808k's MOB Eliminations: 2k's - File emailed Base Released This is the last Riesel base with ck<10K to be started. 
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2011-07-23, 06:24
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#1258 |
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May 2007
Kansas; USA
28AD16 Posts |
Kenneth has reported that S998 is at n=128.1K. There is nothing to report and he is continuing.
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2011-07-26, 02:35
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#1259 |
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May 2008
Wilmington, DE
B2416 Posts |
R812
R812 tested n=100K-200K - Nothing found
Results emailed - Base released |
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2011-07-27, 19:31
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#1260 |
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May 2008
Wilmington, DE
B2416 Posts |
S653
Reserving S653 to n=100K
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2011-07-29, 09:41
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#1261 |
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"Mark"
Apr 2003
Between here and the
22×7×227 Posts |
S1002 complete to n=50000 and released. Two primes found:
154*1002^48610+1 409*1002^46198+1 7 k remain. Residues attached. |
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2011-07-29, 17:18
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#1262 |
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"Mark"
Apr 2003
Between here and the
11000110101002 Posts |
S588 proven.
90*588^110728+1 is prime!
Considering this is the second highest weighted single k conjecture, this was a nice one to knock off. It took me surprise. I've been gone all week and it was discovered on Monday after I left. I didn't know about it until I returned because I didn't have PRPNet server configured to send out e-mails. The other piece of annoyance was that the first attempt at a primality test failed with PFGW. I then realized that I entered the wrong number for the primality test. I would have been disappointed had phrot been wrong. This prime should enter as #9 on the largest primes to prove a Sierpinski conjecture. |
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2011-07-29, 18:25
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#1263 | |
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May 2007
Kansas; USA
32·13·89 Posts |
Quote:
Nice one Mark. Another one bites the dust. Working on the heavy weights definitely gives a better chance of prime/proof before the n-value gets annoyingly large. |
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2011-07-29, 19:28
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#1264 |
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"Mark"
Apr 2003
Between here and the
22×7×227 Posts |
R1001 complete to n=50000 and released. One prime found:
478*1001^30517-1 7 k remain. Residues attached. Last fiddled with by gd_barnes on 2011-07-29 at 23:39 Reason: Two -> One |
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2011-07-30, 09:13
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#1265 |
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May 2007
Kansas; USA
32·13·89 Posts |
R1019 and S1004 have been released due to lack of activity in 6 months and response to PM/Emails over several weeks.
Last fiddled with by gd_barnes on 2011-07-30 at 09:18 |
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