Mersenne numbers P-1 factors that should have already been found but were missed:
2,660 exponents (2,669 factors) like this known
Exponent range: M to M
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ExponentFactor BitsAssignment
M332,308,9135067640486963475884185775.4237Factor=332308913,75,76
Pminus1=1,2,332308913,-1,21673,25309,75
M102,227,7772029875680384526424852774.1038Factor=102227777,74,75
Pminus1=1,2,102227777,-1,10601,14159,74
M102,086,2612302286807430612899731374.2855Factor=102086261,74,75
Pminus1=1,2,102086261,-1,1733,7253,74
M102,001,051718064090649193043879372.6046Factor=102001051,72,73
Pminus1=1,2,102001051,-1,37123,3078469,72
M95,675,5816109797573339995691635375.6935Factor=95675581,75,76
Pminus1=1,2,95675581,-1,4493,1143563,75
M89,281,183136518113299762184609612980.1754Factor=89281183,80,81
Pminus1=1,2,89281183,-1,65173,1303669,80
M89,238,581149358118732169002144404180.3051Factor=89238581,80,81
Pminus1=1,2,89238581,-1,192029,1867147,80
M82,001,239396134840773323739972171.7465Factor=82001239,71,72
Pminus1=1,2,82001239,-1,124021,423389,71
M78,074,3173254057484707897033584174.7847Factor=78074317,74,75
Pminus1=1,2,78074317,-1,569,4676297,74
M77,092,7273065339896950359126440774.6985Factor=77092727,74,75
Pminus1=1,2,77092727,-1,457,1583833,74
M75,054,5472586033828602980222816974.4532Factor=75054547,74,75
Pminus1=1,2,75054547,-1,42473,10242809,74
M73,133,0899570316264917887850431376.3410Factor=73133089,76,77
Pminus1=1,2,73133089,-1,1033,146213,76
M72,713,617389968389759140183678759981.6896Factor=72713617,81,82
Pminus1=1,2,72713617,-1,3847,1047701,81
M72,402,9173284373054834833811545262496160201111.3390Factor=72402917,111,112
Pminus1=1,2,72402917,-1,416149,6369967,111
M70,070,9112763615755314373187840174.5490Factor=70070911,74,75
Pminus1=1,2,70070911,-1,1213,8467357,74
M69,831,649688551829924138538103172.5441Factor=69831649,72,73
Pminus1=1,2,69831649,-1,104659,10468037,72
M69,292,193117151740675561400601732131389.9204Factor=69292193,89,90
Pminus1=1,2,69292193,-1,21863,699767,89
M69,249,1993106121941174391590116174.7175Factor=69249199,74,75
Pminus1=1,2,69249199,-1,44383,2276167,74
M69,084,8871077405974782809028651373.1900Factor=69084887,73,74
Pminus1=1,2,69084887,-1,3557,1504813,73
M67,245,7912187774178020235227729774.2119Factor=67245791,74,75
Pminus1=1,2,67245791,-1,7727,5967163,74
M67,182,4032668469906001504078375174.4984Factor=67182403,74,75
Pminus1=1,2,67182403,-1,625,625,74
M65,692,78715745176449234120824767.0935Factor=65692787,67,68
Pminus1=1,2,65692787,-1,991,10162001,67
M63,186,5112539473373194233715412974.4269Factor=63186511,74,75
Pminus1=1,2,63186511,-1,6859,2361167,74
M62,717,6571183171916481102352687973.3251Factor=62717657,73,74
Pminus1=1,2,62717657,-1,3331,9102347,73
M62,282,6571874362851673881684203373.9888Factor=62282657,73,74
Pminus1=1,2,62282657,-1,179,5847761,73
M61,684,1712870896486855478497485774.6039Factor=61684171,74,75
Pminus1=1,2,61684171,-1,13381,2443933,74
M61,658,3694195901662369653963106375.1514Factor=61658369,75,76
Pminus1=1,2,61658369,-1,144773,6932917,75
M61,640,0571484025138758689783363373.6519Factor=61640057,73,74
Pminus1=1,2,61640057,-1,16427,18503,73
M61,435,4531028005365054630202476773.1223Factor=61435453,73,74
Pminus1=1,2,61435453,-1,503,5915323,73
M58,229,17340934884457181820047380644188.4035Factor=58229173,88,89
Pminus1=1,2,58229173,-1,2083,4170737,88
M58,020,869550041096624163801231172.2200Factor=58020869,72,73
Pminus1=1,2,58020869,-1,36433,121421,72
M57,916,601825509570299310922640972.8058Factor=57916601,72,73
Pminus1=1,2,57916601,-1,1637,318883,72
M57,520,97338154522086192270788168.3704Factor=57520973,68,69
Pminus1=1,2,57520973,-1,841,6360659,68
M57,505,871312227590542171814564771.4031Factor=57505871,71,72
Pminus1=1,2,57505871,-1,2251,2172613,71
M57,263,0271097734730205773288436173.2169Factor=57263027,73,74
Pminus1=1,2,57263027,-1,293123,5449943,73
M57,003,02968642123468102445976316979.1834Factor=57003029,79,80
Pminus1=1,2,57003029,-1,381233,1081139,79
M56,621,6573041649276683578935404974.6873Factor=56621657,74,75
Pminus1=1,2,56621657,-1,7459,14614207,74
M55,603,34932865536261056086104968.1551Factor=55603349,68,69
Pminus1=1,2,55603349,-1,13999,23017,68
M55,488,707108813113953370925820169.8823Factor=55488707,69,70
Pminus1=1,2,55488707,-1,149,4803301,69
M55,373,88193890608127712152125752779.6353Factor=55373881,79,80
Pminus1=1,2,55373881,-1,4639,254461,79
M54,806,77147006730899275145668168.6714Factor=54806771,68,69
Pminus1=1,2,54806771,-1,262693,816239,68
M54,386,28741611556102140579443168.4955Factor=54386287,68,69
Pminus1=1,2,54386287,-1,25303,1439903,68
M53,996,18357608135464880721395368.9648Factor=53996183,68,69
Pminus1=1,2,53996183,-1,97,10877071,68
M53,893,06944232770467811930230368.5837Factor=53893069,68,69
Pminus1=1,2,53893069,-1,4409,5903,68
M53,876,873897737511857849169608972.9268Factor=53876873,72,73
Pminus1=1,2,53876873,-1,12697,9822893,72
M53,823,701569375842786422352980772.2699Factor=53823701,72,73
Pminus1=1,2,53823701,-1,409,761869,72
M53,729,183215278580927076941331170.8667Factor=53729183,70,71
Pminus1=1,2,53729183,-1,361,1452557,70
M53,598,4072559327768671214482207974.4382Factor=53598407,74,75
Pminus1=1,2,53598407,-1,381223,2381273,74
M53,532,641267819631674688071705771.1818Factor=53532641,71,72
Pminus1=1,2,53532641,-1,3083,2347721,71
M53,356,66134292771926518732311968.2165Factor=53356661,68,69
Pminus1=1,2,53356661,-1,8719,108947,68

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