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Old 2018-01-01, 17:39   #1
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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Default Largest k*2^n-1 Primes Found In 2017

Here is the list of 100 largest "Riesel" primes (k*2^n-1, k>1) found in 2017.

Meaning of rank marks:
r1, rank on this list
r2, rank on the list of all known primes (as of January 1, 2018 at 1730 GMT)

Code:
----------------------------------------------------------------------
 r1     r2    description                        digits     who
----------------------------------------------------------------------
  1     29    273809*2^8932416-1		2688931    L1056
  2     35    737*2^7269322-1                   2188287    L4665
  3     70    5*2^5429494-1                     1634442    L3345
  4     72    1349*2^5385004-1                  1621051    L1828
  5    111    49*2^4365175-1                    1314051    L1959
  6    112    49*2^4360869-1                    1312755    L1959
  7    126    1031*2^4054974-1                  1220672    L1828
  8    189    1393*2^3525571-1                  1061306    L1828
  9    207    1061*2^3471354-1                  1044985    L1828
 10    243    342924651*2^3394939-1             1021988    L4166
 11    262    61*2^3366033-1                    1013279    L4405
 12    319    2017*2^3292325-1                   991092    L3345
 13    345    99*2^3102401-1                     933918    L1862
 14    406    45*2^2958002-1                     890449    L1862
 15    416    61*2^2936967-1                     884117    L2484
 16    431    99*2^2899303-1                     872780    L1862
 17    470    1337*2^2785444-1                   838506    L4518
 18    471    600921*2^2776014-1                 835670    g337
 19    513    4189*2^2666639-1                   802742    L1959
 20    555    229*2^2581111-1                    776995    L1862
 21    611    213*2^2493004-1                    750472    L1863
 22    647    12587*2^2462524-1                  741298    L2012
 23    687    4075*2^2417579-1                   727768    L1959
 24    716    1485*2^2386037-1                   718272    L1134
 25    725    1981*2^2375591-1                   715128    L1134
 26    764    335*2^2338972-1                    704104    L2235
 27    766    339*2^2336421-1                    703336    L2519
 28    773    213*2^2328530-1                    700960    L1863
 29    792    345*2^2313720-1                    696502    L2017
 30    824    213*2^2277870-1                    685710    L1863
 31    867    347*2^2245598-1                    675995    L2519
 32    966    4165*2^2171145-1                   653584    L1959
 33   1059    2503*2^2094587-1                   630537    L4113
 34   1109    213*2^2064426-1                    621457    L1863
 35   1145    4175*2^2032552-1                   611863    L1959
 36   1148    4157*2^2029894-1                   611063    L1959
 37   1154    4185*2^2026400-1                   610011    L1959
 38   1168    4101*2^2018133-1                   607523    L1959
 39   1169    4081*2^2015959-1                   606868    L1959
 40   1170    4191*2^2015150-1                   606625    L1959
 41   1231    4125*2^1984855-1                   597505    L1959
 42   1243    19920911*2^1974666-1               594441    L806
 43   1248    4197*2^1970430-1                   593163    L1959
 44   1567    1965*2^1803256-1                   542838    L4113
 45   1582    1965*2^1797877-1                   541219    L4113
 46   1589    10041*2^1795990-1                  540651    p168
 47   1797    1967*2^1710052-1                   514781    L4113
 48   1948    19920911*2^1648678-1               496309    L806
 49   1967    2715*2^1640137-1                   493734    L2484
 50   1996    2715*2^1629931-1                   490662    L2484
 51   2222    2955*2^1582609-1                   476417    L3887
 52   2270    2355*2^1571668-1                   473123    L2484
 53   2298    2925*2^1564031-1                   470824    L2484
 54   2326    3423*2^1555994-1                   468405    L860
 55   2329    3615*2^1555289-1                   468193    L860
 56   2333    3615*2^1554565-1                   467975    L860
 57   2373    3555*2^1542812-1                   464437    L860
 58   2438    8515*2^1525105-1                   459107    L1884
 59   2439    8515*2^1524873-1                   459037    L1884
 60   2461    541*2^1519465-1                    457408    L3844
 61   2469    2295*2^1517247-1                   456741    L2484
 62   2475    449*2^1516108-1                    456397    L3844
 63   2519    465*2^1504138-1                    452794    L3844
 64   2524    7863*2^1502299-1                   452241    L860
 65   2529    551*2^1501694-1                    452058    L3844
 66   2544    7473*2^1497216-1                   450711    L860
 67   2545    2145*2^1497137-1                   450687    L1863
 68   2557    2445*2^1495063-1                   450063    L2484
 69   2561    595*2^1494593-1                    449921    L2257
 70   2575    6825*2^1492542-1                   449304    L860
 71   2584    683*2^1491446-1                    448973    L2257
 72   2590    477*2^1489922-1                    448514    L1978
 73   2594    527*2^1489120-1                    448273    L2257
 74   2612    801*2^1486133-1                    447374    L2257
 75   2615    829*2^1484633-1                    446922    L2257
 76   2618    567*2^1484069-1                    446753    L1978
 77   2624    108045*2^1482857-1                 446390    L466
 78   2627    627*2^1482485-1                    446276    L1819
 79   2634    895*2^1480783-1                    445764    L1819
 80   2636    923*2^1480444-1                    445662    L2017
 81   2641    559*2^1478821-1                    445173    L2257
 82   2643    545*2^1478786-1                    445162    L2257
 83   2649    2547*2^1477754-1                   444852    L2484
 84   2653    867*2^1477169-1                    444676    L2017
 85   2654    675*2^1476887-1                    444591    L1819
 86   2679    741*2^1472086-1                    443145    L2257
 87   2680    7383*2^1472071-1                   443142    L860
 88   2690    10005*2^1469358-1                  442325    L4405
 89   2692    7917*2^1468572-1                   442089    L860
 90   2694    527*2^1468300-1                    442006    L3844
 91   2695    759*2^1468175-1                    441968    L2519
 92   2704    7125*2^1466093-1                   441342    L860
 93   2712    475*2^1464057-1                    440728    L3055
 94   2714    955*2^1463821-1                    440658    L2257
 95   2753    765*2^1460683-1                    439713    L2519
 96   2775    591*2^1458622-1                    439092    L3844
 97   2801    489*2^1456683-1                    438508    L3055
 98   2802    413*2^1456498-1                    438453    L3844
 99   2835    843*2^1453392-1                    437518    L2257
100   2847    513*2^1452354-1                    437205    L3844
---------------------------------------------------------------------
The list of 100 largest Riesel primes found in 2017 can be found
http://www.mersenneforum.org/showthread.php?t=21885

Last fiddled with by Thomas11 on 2018-01-01 at 18:11
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