mersenneforum.org Largest k*2^n-1 Primes Found In 2014
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 2015-01-01, 12:14 #1 Kosmaj     Nov 2003 2·1,811 Posts Largest k*2^n-1 Primes Found In 2014 Here is the list of 100 largest "Riesel" primes (k*2^n-1, k>1) found in 2014. Meaning of rank marks: r1, rank on this list r2, rank on the list of all known primes (January 1, 2015 at 1200 GMT) Comparison with 2013:11 primes with more than 1 million digits in 2014, 6 in 2013 Minimum exponent on the list n=1744930 in 2014, n=1468439 in 2013 Code: ----------------------------------------------------- r1 r2 description digits who ----------------------------------------------------- 1 12 3*2^11484018-1 3457035 L3993 2 21 502573*2^7181987-1 2162000 L3964 3 22 402539*2^7173024-1 2159301 L3961 4 28 37*2^6660841-1 2005115 L3933 5 38 51*2^5085142-1 1530782 L760 6 50 11*2^4643238-1 1397755 L2484 7 51 27*2^4583717-1 1379838 L2992 8 53 27*2^4542344-1 1367384 L1204 9 84 113*2^3628034-1 1092150 L2484 10 107 113*2^3409934-1 1026495 L2484 11 110 67*2^3391385-1 1020911 L1959 12 127 33*2^3242126-1 975979 L3345 13 136 69*2^3140225-1 945304 L3764 14 141 69*2^3097340-1 932395 L3764 15 176 4013*2^2873250-1 864939 L1959 16 205 69*2^2649939-1 797713 L3764 17 229 87*2^2518122-1 758033 L2484 18 244 103*2^2462567-1 741309 L2484 19 249 65*2^2450614-1 737711 L2074 20 255 69*2^2428251-1 730979 L384 21 303 105*2^2280078-1 686374 L2444 22 304 155877*2^2273465-1 684387 L541 23 397 243*2^2147387-1 646431 L2444 24 458 4001*2^2093286-1 630146 L1959 25 525 125*2^2037752-1 613427 L2444 26 587 317*2^1991592-1 599532 L1809 27 590 105*2^1989208-1 598814 L1959 28 600 195*2^1983875-1 597209 L1828 29 605 381*2^1974841-1 594489 L1809 30 610 1485*2^1968400-1 592551 L1134 31 622 125*2^1963964-1 591215 L1959 32 628 45*2^1957377-1 589231 L1862 33 644 391*2^1949159-1 586758 L2519 34 646 351*2^1947281-1 586193 L1809 35 664 357*2^1934704-1 582407 L1809 36 680 335*2^1917610-1 577261 L1809 37 691 379*2^1909097-1 574699 L1809 38 698 1323*2^1899548-1 571825 L1828 39 700 1131*2^1897379-1 571172 L1828 40 702 1053*2^1891799-1 569492 L1828 41 709 391*2^1886863-1 568005 L1809 42 727 1063*2^1876427-1 564864 L1828 43 728 1389*2^1876376-1 564849 L1828 44 730 4015*2^1875453-1 564572 L1959 45 732 1209*2^1874804-1 564376 L1828 46 737 357*2^1871600-1 563411 L2519 47 738 1309*2^1871045-1 563244 L1828 48 744 1073*2^1867944-1 562311 L1828 49 745 1115*2^1866094-1 561754 L1828 50 751 347*2^1861974-1 560513 L2519 51 754 1165*2^1860749-1 560145 L1828 52 761 1125*2^1856703-1 558927 L1828 53 762 1155*2^1855389-1 558531 L1828 54 763 4031*2^1855338-1 558516 L1959 55 765 1229*2^1853192-1 557870 L1828 56 772 275*2^1846390-1 555822 L2444 57 775 133*2^1843619-1 554987 L1959 58 778 1089*2^1840695-1 554108 L1828 59 779 105*2^1840262-1 553977 L1959 60 780 1009*2^1840225-1 553966 L1828 61 781 1323*2^1839623-1 553785 L1828 62 783 399*2^1839019-1 553603 L1809 63 787 379*2^1837291-1 553083 L1809 64 790 4061*2^1835582-1 552569 L1959 65 792 1181*2^1834802-1 552334 L1828 66 796 1021*2^1833459-1 551930 L1828 67 797 1485*2^1832651-1 551687 L1134 68 800 295*2^1832129-1 551529 L2444 69 809 235*2^1824515-1 549237 L2444 70 825 454483*2^1817935-1 547259 p77 71 844 4117*2^1807085-1 543991 L1959 72 858 4017*2^1800617-1 542044 L1959 73 861 4079*2^1798192-1 541314 L1959 74 866 383*2^1794636-1 540242 L1809 75 868 1101*2^1794417-1 540177 L1828 76 869 387*2^1793857-1 540008 L2519 77 870 105*2^1793519-1 539906 L1959 78 873 1185*2^1791429-1 539277 L1828 79 879 1065*2^1787993-1 538243 L1828 80 891 1333*2^1784103-1 537072 L1828 81 893 4069*2^1781691-1 536347 L1959 82 896 391*2^1780155-1 535883 L1809 83 899 123*2^1779728-1 535754 L3967 84 909 293*2^1775450-1 534467 L2074 85 910 1005*2^1775235-1 534402 L1828 86 922 1005*2^1765454-1 531458 L1828 87 924 1347*2^1765384-1 531437 L1828 88 927 399*2^1764851-1 531276 L1809 89 930 335*2^1762548-1 530583 L1809 90 931 1399*2^1762191-1 530476 L1828 91 935 1253*2^1760738-1 530039 L1828 92 936 4199*2^1760292-1 529905 L1959 93 937 1037*2^1760216-1 529881 L1828 94 943 357*2^1756764-1 528842 L2519 95 952 1391*2^1754922-1 528288 L1828 96 955 1261*2^1753021-1 527716 L1828 97 958 355*2^1752713-1 527622 L2519 98 963 1293*2^1750532-1 526966 L1828 99 968 297*2^1745377-1 525414 L2074 100 969 1293*2^1744930-1 525280 L1828 ----------------------------------------------------- The list of 100 largest Riesel primes found in 2013 can be found here.
 2015-01-02, 12:14 #2 pinhodecarlos     "Carlos Pinho" Oct 2011 Milton Keynes, UK 10011000101112 Posts Thank you.

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