Mersenne numbers with smoothest P-1 factors:
Top 1,291 factors (top 100 per 10M range) listed here
Exponent Factor Bits min B1min B2 Ratio k (factored)
M332,220,63140317891123366751539728978.425,845,13925,952,929330,965.7022 × 5845139 × 25952929
M332,261,983190794986485809882889819980.662,192,0092,262,22328,047.003 × 193 × 2192009 × 2262223
M332,201,07120350530743894199484246377.431,583,65164,470,937832,641.433 × 1583651 × 64470937
M332,219,5396157103818187609775710294086831102.281,518,69119,058,287186,334.273 × 5 × 613 × 34819 × 1518691 × 19058287
M332,220,85990650178251966463628842319989.551,495,8675,295,62959,135.713 × 11 × 17 × 307 × 1495867 × 5295629
M139,788,67923566820670448021263052977.641,408,9691,408,96918,147.2029 × 32 × 112 × 29 × 37 × 11872
M332,199,39126565262217163511370046565787.781,239,2235,840,50966,536.0122 × 7 × 1973 × 1239223 × 5840509
M130,000,9937878706663736229852212889786.031,198,8618,895,011103,398.9128 × 3 × 37 × 1198861 × 8895011
M332,259,91127492847854246204170030836987.831,194,7518,202,70993,393.8923 × 3 × 1759 × 1194751 × 8202709
M111,013,499580368052790990270853705782.261,126,97328,424,579345,531.9624 × 3 × 17 × 1126973 × 28424579
M110,111,0112112269817586651744378264912534933423120.671,107,59318,748,679155,373.8132 × 17 × 19 × 29 × 383 × 563 × 25409 × 1107593 × 18748679
M332,202,467112747413439218708857185044189.871,067,7115,710,10963,540.8622 × 3 × 5 × 4639 × 1067711 × 5710109
M332,264,49715332269681406403050019823853901889113.561,059,06153,935,031474,938.5425 × 3 × 31 × 269 × 504563 × 1059061 × 53935031
M112,405,67348542957508840360946792307388.651,053,7378,120,24391,599.5326 × 3943 × 1053737 × 8120243
M103,000,54959185508530849856500906848300198.901,038,01713,644,203137,957.9722 × 3 × 53 × 13 × 101 × 103 × 1038017 × 13644203
M332,301,46125733730716487614952307977.771,013,5033,265,34941,988.3332 × 13 × 1013503 × 3265349
M122,000,39367461673657823527356215722108799.09975,80323,332,297235,465.75103 × 239 × 4933 × 975803 × 23332297
M143,052,00148500467982378099972795378.68975,4214,098,86952,093.8823 × 53 × 975421 × 4098869
M332,310,5711199545160359146565994445575393.28933,55334,004,017364,550.8422 × 19 × 7481 × 933553 × 34004017
M112,412,2632241695564950946931040153439994.18865,00311,250,677119,461.111049 × 9767 × 865003 × 11250677
M332,406,10136134537031905944697852427188.22857,4113,425,02138,822.0934 × 5 × 457 × 857411 × 3425021
M91,010,573156559891138782195594280216415071106.95842,0031,879,60717,574.893 × 5 × 11 × 199 × 563 × 29399 × 842003 × 1879607
M119,999,12350213446075725976303963178.73834,9491,087,12913,807.905 × 461 × 834949 × 1087129
M332,198,6815414284231543658478199587186241102.10830,8611,320,25112,931.6425 × 32 × 5 × 1949 × 2647 × 830861 × 1320251
M115,999,661495199464755696775907984406392.00758,61718,944,507205,918.4011 × 135019 × 758617 × 18944507
M112,412,31728420046886857761397762533259397.84756,88138,331,763391,768.7723 × 13 × 43 × 9743 × 756881 × 38331763
M22,411,801104318736334797586545092443989.75674,041674,0417,509.953 × 112 × 192 × 8212 × 1153 × 228521
M127,999,1393451915954703517065385005536194.80657,4131,045,57111,029.0725 × 5 × 43 × 28513 × 657413 × 1045571
M112,413,2212420284021056480917701540984.32651,2234,619,55754,783.8223 × 32 × 7 × 71 × 651223 × 4619557
M99,006,98322570331142199673340278726387.54607,933995,57311,372.197 × 269039 × 607933 × 995573
M333,003,3717191801146619617341998325884795.86601,763944,8999,857.043 × 11 × 13 × 19 × 23 × 1013 × 601763 × 944899
M332,338,703163234197651581742098866380.43581,3117,530,58793,625.343 × 11 × 17 × 581311 × 7530587
M332,462,6519735126646754007561785419386.33580,9274,792,84755,516.8423 × 3 × 7 × 313 × 580927 × 4792847
M577,777,77714208317633332733265225951551519103.49578,4835,385,26952,038.3737357 × 105653 × 578483 × 5385269
M291,715,11798225640025976412553706760976457106.28561,3475,877,76355,306.6622 × 61 × 6047 × 34583 × 561347 × 5877763
M303,050,30396717715449293503087807379.68559,259693,2238,700.2922 × 3 × 73 × 559259 × 693223
M332,374,07913287490333326145066984976.81554,699698,3599,091.5122 × 3 × 43 × 554699 × 698359
M332,355,521609058714534887388899259982.33547,021816,6499,918.8732 × 43 × 53 × 547021 × 816649
M324,000,1692107736488354350041793600141033289110.70529,237934,7238,443.8022 × 32 × 53 × 17761 × 194027 × 529237 × 934723
M103,009,1415866732402989924068979175.64507,5572,200,21729,089.943 × 5 × 17 × 507557 × 2200217
M111,012,75113106100032661131988091376.79498,3675,483,62371,406.3823 × 33 × 498367 × 5483623
M332,231,411440202082882119231604133870391.83479,41965,638,457714,780.53210527 × 479419 × 65638457
M112,400,53719059189504989808709395203987.30452,807860,9419,861.8071 × 30631 × 452807 × 860941
M20,487,4491436945911678374371550098416993.54426,917541,3095,787.1122 × 32 × 523 × 80599 × 426917 × 541309
M24,079,9812108727377969097829891974.16426,193435,1435,867.723 × 787 × 426193 × 435143
M28,111,90320476688161090259275967.47406,583426,5516,321.853 × 7 × 406583 × 426551
M22,781,40111609781357651638585883176.62385,657782,37110,211.103 × 5 × 563 × 385657 × 782371
M332,340,10338943068757827579999467153788.33377,147526,6495,962.1923 × 13 × 113 × 251 × 377147 × 526649
M332,219,441213456255346094959535991180.82376,0096,399,91779,187.083 × 5 × 89 × 376009 × 6399917
M103,009,97940919855648181690280018449570881105.01374,8933,480,29933,141.7425 × 5 × 23 × 97 × 347 × 1229 × 374893 × 3480299

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