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Kosmaj 2013-01-01 10:28

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:[LIST][*]10 million digit primes in 2012, 6 in 2011[*]min exponent on the list 1290k in 2012, about 1240k in 2011[/LIST][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
--------------------------------------------------------------
[/CODE]

The list of largest primes found in 2011 can be found [URL="http://www.mersenneforum.org/showthread.php?t=16407"]here[/URL].

VBCurtis 2013-01-01 21:36

Congratulations to Peter for 6 of the top 10 and 11 of the top 20 discoveries on the 2012 list!

pinhodecarlos 2013-12-27 12:02

Countdown to [B]Largest k*2^n-1 Primes Found in 2013.[/B]

pepi37 2013-12-27 13:25

I will be at that list :)
Yess :)))


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