mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Riesel Prime Search

Reply
 
Thread Tools
Old 2013-01-01, 10:28   #1
Kosmaj
 
Kosmaj's Avatar
 
Nov 2003

2×1,811 Posts
Default Largest k*2^n-1 Primes Found in 2012

Here is the list of 100 largest "Riesel" primes (k*2^n-1, k>1) found in 2012.

Meaning of rank marks:
r1, rank on this list
r2, rank on the list of all known primes (January 1, 2013 at 1100 GMT)

Comparison with 2011:
  • 10 million digit primes in 2012, 6 in 2011
  • min exponent on the list 1290k in 2012, about 1240k in 2011
Code:
--------------------------------------------------------------
 r1   r2    description                     digits        who 
--------------------------------------------------------------
  1   25  252191*2^5497878-1               1655032	 L3183
  2   33  1271*2^4850526-1                 1460157	 L1828
  3   35  9*2^4683555-1                    1409892	 L1828
  4   36  121*2^4553899-1                  1370863	 L3023
  5   41  191*2^4203426-1                  1265360	 L2484
  6   43  9*2^4005979-1                    1205921	 L1828
  7   44  27*2^3855094-1                   1160501	 L3033
  8   52  1019*2^3536312-1                 1064539	 L1828
  9   56  1273*2^3448551-1                 1038121	 L1828
 10   60  1087*2^3336385-1                 1004355	 L1828
 11   63  223*2^3264459-1                   982703	 L1884
 12   66  1087*2^3164677-1                  952666	 L1828
 13   68  19*2^3155009-1                    949754	 L1828
 14   70  1019*2^3103680-1                  934304	 L1828
 15   71  5*2^3090860-1                     930443	 L1862
 16   90  165*2^2717378-1                   818015	 L2055
 17   95  13*2^2642943-1                    795607	 L1862
 18  110  1061*2^2474282-1                  744837	 L1828
 19  119  61*2^2381887-1                    717022	 L2432
 20  120  1117*2^2373977-1                  714642	 L1828
 21  123  2683*2^2360743-1                  710658	 L1959
 22  146  69*2^2174213-1                    654506	 L2055
 23  148  21*2^2160479-1                    650371	 L2074
 24  180  253*2^1965215-1                   591592	 L3345
 25  184  111*2^1946322-1                   585904	 L2484
 26  186  182627*2^1934664-1                582398	 L3336
 27  187  143*2^1932112-1                   581626	 L1828
 28  198  21*2^1872923-1                    563808	 L2074
 29  199  315*2^1869119-1                   562664	 L2235
 30  202  103*2^1860103-1                   559949	 L2484
 31  206  333*2^1853115-1                   557846	 L1830
 32  216  1387*2^1818593-1                  547455	 L1828
 33  218  1155*2^1816779-1                  546909	 L1828
 34  221  1347*2^1813433-1                  545901	 L1828
 35  240  177*2^1775674-1                   534534	 L2101
 36  253  345*2^1742652-1                   524594	 L1830
 37  254  91*2^1742093-1                    524425	 L2338
 38  255  315*2^1741334-1                   524197	 L1830
 39  336  309*2^1647947-1                   496084	 L2028
 40  337  209*2^1647640-1                   495992	 L2338
 41  404  263*2^1587302-1                   477828	 L2101
 42  430  373*2^1575751-1                   474351	 L1819
 43  435  111*2^1570718-1                   472836	 L1862
 44  444  103*2^1562619-1                   470398	 L2484
 45  493  143*2^1507352-1                   453761	 L1828
 46  529  103*2^1486695-1                   447542	 L2484
 47  568  179*2^1464720-1                   440927	 L2074
 48  578  1035*2^1460028-1                  439516	 L1828
 49  584  1179*2^1456957-1                  438591	 L1828
 50  588  1085*2^1453676-1                  437604	 L1828
 51  590  281*2^1453426-1                   437528	 L2101
 52  595  1101*2^1450203-1                  436558	 L1828
 53  642  19681127*2^1426862-1              429536	  L466
 54  651  255*2^1422283-1                   428153	 L2074
 55  679  143*2^1406788-1                   423488	 L1828
 56  694  125*2^1398712-1                   421057	 L2101
 57  700  225*2^1395649-1                   420135	 L2074
 58  731  199*2^1379329-1                   415222	 L2074
 59  764  19861029*2^1365009-1              410916	  L895
 60  789  199*2^1354385-1                   407713	 L2074
 61  824  1261*2^1338371-1                  402893	 L1828
 62  825  1099*2^1338041-1                  402794	 L1828
 63  828  1309*2^1337417-1                  402606	 L1828
 64  833  1295*2^1337012-1                  402484	 L1828
 65  834  143*2^1336358-1                   402286	 L1828
 66  844  1065*2^1334660-1                  401776	 L1828
 67  845  177*2^1334422-1                   401704	 L2101
 68  847  1293*2^1332159-1                  401023	 L1828
 69  851  1341*2^1328829-1                  400021	 L1828
 70  854  1293*2^1327556-1                  399638	 L1828
 71  857  1275*2^1325641-1                  399061	 L1828
 72  860  1089*2^1323857-1                  398524	 L1828
 73  864  1221*2^1322591-1                  398143	 L1828
 74  865  1371*2^1322077-1                  397988	 L1828
 75  867  1245*2^1321376-1                  397777	 L1828
 76  875  1225*2^1317269-1                  396541	 L1828
 77  891  1015*2^1311187-1                  394710	 L1828
 78  899  1157*2^1308162-1                  393800	 L1828
 79  903  1329*2^1306295-1                  393238	 L1828
 80  905  1105*2^1305693-1                  393056	 L1828
 81  906  1485*2^1305359-1                  392956	 L1134
 82  910  24217*2^1304085-1                 392574	 L2055
 83  929  1215*2^1295400-1                  389958	 L1828
 84  938  1029*2^1292517-1                  389090	 L1828
 85  944  261643415715*2^1290000-1          388341	 L2438
 86  945  260849015397*2^1290000-1          388341	 L3203
 87  946  260715365475*2^1290000-1          388341	 L1929
 88  947  260227577727*2^1290000-1          388341	 L3274
 89  948  260109856197*2^1290000-1          388341	 L3274
 90  949  260093628975*2^1290000-1          388341	 L3346
 91  950  258572084955*2^1290000-1          388341	 L3274
 92  951  252970964277*2^1290000-1          388341	 L3203
 93  952  251309396835*2^1290000-1          388341	 L1319
 94  953  251269114257*2^1290000-1          388341	 L1319
 95  954  250180546665*2^1290000-1          388341	 L1704
 96  955  248186300367*2^1290000-1          388341	 L3274
 97  956  246240340467*2^1290000-1          388341	 L3274
 98  957  244704278205*2^1290000-1          388341	 L3341
 99  958  244623864417*2^1290000-1          388341	 L2354
100  959  241209176217*2^1290000-1          388341	 L3342
--------------------------------------------------------------
The list of largest primes found in 2011 can be found here.
Kosmaj is offline   Reply With Quote
Old 2013-01-01, 21:36   #2
VBCurtis
 
VBCurtis's Avatar
 
"Curtis"
Feb 2005
Riverside, CA

102248 Posts
Default

Congratulations to Peter for 6 of the top 10 and 11 of the top 20 discoveries on the 2012 list!
VBCurtis is offline   Reply With Quote
Old 2013-12-27, 12:02   #3
pinhodecarlos
 
pinhodecarlos's Avatar
 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK

22·33·43 Posts
Default

Countdown to Largest k*2^n-1 Primes Found in 2013.
pinhodecarlos is offline   Reply With Quote
Old 2013-12-27, 13:25   #4
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

3·19·23 Posts
Default

I will be at that list :)
Yess :)))
pepi37 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Largest k*2^n-1 Primes Found In 2017 pinhodecarlos Riesel Prime Search 9 2018-12-26 02:50
Largest k*2^n-1 Primes Found In 2016 pinhodecarlos Riesel Prime Search 1 2017-01-01 03:24
Largest k*2^n-1 Primes Found In 2015 Kosmaj Riesel Prime Search 0 2016-01-01 13:45
Largest k*2^n-1 Primes Found In 2014 Kosmaj Riesel Prime Search 1 2015-01-02 12:14
Largest k*2^n-1 Primes Found in 2013 Kosmaj Riesel Prime Search 3 2014-12-12 07:14

All times are UTC. The time now is 05:46.

Sat Aug 15 05:46:34 UTC 2020 up 2 days, 2:22, 0 users, load averages: 2.78, 3.05, 2.99

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.