mersenneforum.org Riesel Primes k*2^n-1, k<300 [Part II]
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 2017-01-01, 09:41 #903 Thomas11     Feb 2003 1,907 Posts status report k=11 at n=5.85M. k=113 at n=5.4M. k=191 at n=6.0M.
 2017-01-02, 04:05 #904 Kosmaj     Nov 2003 E2616 Posts The status page on 15k.org is now updated as well. And I just noticed that prof. Keller's page (site) prothsearch.net is not active any more, and it's actually on auction. Last fiddled with by Thomas11 on 2017-01-04 at 08:44 Reason: repairing the link
 2017-01-31, 22:37 #905 Cruelty     May 2005 2·809 Posts status report k=25 tested till n=4.01M k=43 tested till n=5.08M k=79 tested till n=3.66M k=101 tested till n=5.21M
 2017-04-01, 00:41 #906 Cruelty     May 2005 2×809 Posts status report k=25 tested till n=4.06M k=43 tested till n=5.13M k=79 tested till n=3.75M k=101 tested till n=5.27M k=8515 tested till n=1.1M (prime for n=1, 7, 9, 15, 25, 53, 69, 93, 109, 183, 377, 613, 623, 647, 695, 1169, 1677, 2415, 3241, 4591, 5177, 5313, 6013, 10559, 11401, 15447, 20591, 23479, 23959, 88577, 88913, 123957, 139337, 198479, 225263, 397009, 535319, 563029, 661689) Last fiddled with by Cruelty on 2017-04-01 at 00:42
 2017-04-01, 08:01 #907 unconnected     May 2009 Russia, Moscow 32·281 Posts k=33 @ 4.18M
2017-04-29, 19:26   #908
MooMoo2

Aug 2010

32×67 Posts

k=39 is complete to n=4.05M. No new primes, and I'm continuing.

The results files are attached (part 1 of 2).
Attached Files
 16100-250000.txt (612.5 KB, 253 views) 250000-670000.txt (1,005.8 KB, 136 views) 670000-1100000.txt (964.6 KB, 397 views) 1100000-1550000.txt (956.3 KB, 241 views) 1550000-2000000.txt (948.8 KB, 111 views)

2017-04-29, 19:42   #909
MooMoo2

Aug 2010

32·67 Posts

Quote:
 Originally Posted by MooMoo2 k=39 is complete to n=4.05M. No new primes, and I'm continuing. The results files are attached (part 1 of 2).
Part 2 of 2 is attached. All 28 known k=39 primes:

Code:
39*2^3-1 is prime! (3 digits)
39*2^24 - 1 is prime! (P = 1, Q = -1) [9 digits]
39*2^105 - 1 is prime! (P = 1, Q = -1) [34 digits]
39*2^153 - 1 is prime! (P = 1, Q = -1) [48 digits]
39*2^188 - 1 is prime! (P = 1, Q = -1) [59 digits]
39*2^605 - 1 is prime! (P = 1, Q = -1) [184 digits]
39*2^795 - 1 is prime! (P = 8, Q = -1) [241 digits]
39*2^813 - 1 is prime! (P = 1, Q = -1) [247 digits]
39*2^839 - 1 is prime! (P = 8, Q = -1) [255 digits]
39*2^2135 - 1 is prime! (P = 5, Q = -1) [645 digits]
39*2^2619 - 1 is prime! (P = 5, Q = -1) [790 digits]
39*2^4053 - 1 is prime! (P = 1, Q = -1) [1222 digits]
39*2^8333 - 1 is prime! (P = 1, Q = -1) [2511 digits]
39*2^15519 - 1 is prime! (P = 5, Q = -1) [4674 digits]
39*2^16025 - 1 is prime! (P = 1, Q = -1) [4826 digits]
39*2^16505-1 is prime! (4971 decimal digits)  Time : 235.368 ms.
39*2^30684-1 is prime! (9239 decimal digits)  Time : 594.990 ms.
39*2^40700-1 is prime! (12254 decimal digits)  Time : 1.080 sec.
39*2^43683-1 is prime! (13152 decimal digits)  Time : 1.245 sec.
39*2^52233-1 is prime! (15726 decimal digits)  Time : 481.044 ms.
39*2^142205-1 is prime! (42810 decimal digits)  Time : 3.412 sec.
39*2^222345-1 is prime! (66935 decimal digits)  Time : 8.493 sec.
39*2^225333-1 is prime! (67834 decimal digits)  Time : 10.669 sec.
39*2^292839-1 is prime! (88155 decimal digits)  Time : 13.954 sec.
39*2^322613-1 is prime! (97118 decimal digits)  Time : 18.294 sec.
39*2^747219-1 is prime! (224937 decimal digits)  Time : 143.862 sec.
39*2^781220-1 is prime! (235173 decimal digits)  Time : 150.906 sec.
39*2^2251104-1 is prime! (677652 decimal digits)  Time : 1035.153 sec.
Attached Files
 2000000-2473200.txt (958.3 KB, 313 views) 2473200-2956200.txt (973.9 KB, 177 views) 2956200-3342400.txt (789.2 KB, 250 views) 3342400-3642100.txt (609.9 KB, 319 views) 3642100-4054600.txt (833.8 KB, 276 views)

Last fiddled with by MooMoo2 on 2017-04-29 at 19:45 Reason: inserting [code] tags

 2017-05-02, 00:32 #910 Cruelty     May 2005 161810 Posts status report k=25 tested till n=4.09M k=43 tested till n=5.16M k=79 tested till n=3.77M k=101 tested till n=5.3M k=8515 tested till n=1.24M
 2017-05-02, 07:24 #911 Thomas11     Feb 2003 1,907 Posts status report k=11 at n=6.05M. k=113 at n=5.6M. k=191 at n=6.25M.
2017-06-22, 04:56   #912
MooMoo2

Aug 2010

25B16 Posts

Quote:
 Originally Posted by MooMoo2 k=39 is complete to n=4.05M. No new primes, and I'm continuing. The results files are attached (part 1 of 2).
k=39 is now complete to n=4.31M. No new primes, and I'm continuing.
Attached Files
 4054600-4176500.txt (245.3 KB, 237 views) 4176500-4310100.txt (274.5 KB, 200 views)

 2017-07-02, 23:03 #913 Cruelty     May 2005 2·809 Posts status report k=25 tested till n=4.14M k=43 tested till n=5.21M k=79 tested till n=4.06M k=101 tested till n=5.35M k=8515 tested till n=1.44M

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