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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
669010974014065839 ~1993
669033831338067679 ~1992
669041991338083999 ~1992
669045831338091679 ~1992
669055075352440579 ~1994
669062631338125279 ~1992
669070134014420799 ~1993
669072414014434479 ~1993
669098815352790499 ~1994
669102711338205439 ~1992
66910513147203128710 ~1995
669111111338222239 ~1992
669116991338233999 ~1992
669131031338262079 ~1992
669146631338293279 ~1992
669169911338339839 ~1992
66917141254285135910 ~1995
66918493160604383310 ~1995
669200891070721424111 ~1997
669211311338422639 ~1992
669224511338449039 ~1992
669237774015426639 ~1993
669250911338501839 ~1992
669269991338539999 ~1992
669282316692823119 ~1994
Exponent Prime Factor Digits Year
669290991338581999 ~1992
669291974015751839 ~1993
669319191338638399 ~1992
669328191338656399 ~1992
669336134016016799 ~1993
669344031338688079 ~1992
669364311338728639 ~1992
669365875354926979 ~1994
669378591338757199 ~1992
669390831338781679 ~1992
669393111338786239 ~1992
669401511338803039 ~1992
669402299371632079 ~1994
669406311124602600911 ~1997
669413534016481199 ~1993
669421191338842399 ~1992
669444111338888239 ~1992
669452116694521119 ~1994
669454911338909839 ~1992
669455099372371279 ~1994
669471174016827039 ~1993
669481996694819919 ~1994
669483831338967679 ~1992
669501895356015139 ~1994
669508374017050239 ~1993
Exponent Prime Factor Digits Year
669511191339022399 ~1992
669512391339024799 ~1992
669513231339026479 ~1992
669531014017186079 ~1993
66957017160696840910 ~1995
669577036695770319 ~1994
669584991339169999 ~1992
669592814017556879 ~1993
669601431339202879 ~1992
669614391339228799 ~1992
669614511339229039 ~1992
669619334017715999 ~1993
669642734017856399 ~1993
669646431339292879 ~1992
669666374017998239 ~1993
669669831339339679 ~1992
669696595357572739 ~1994
669721675357773379 ~1994
669726231339452479 ~1992
669743334018459999 ~1993
669751311339502639 ~1992
669757191339514399 ~1992
66978217107165147310 ~1994
669791031339582079 ~1992
669797215358377699 ~1994
Exponent Prime Factor Digits Year
669805791339611599 ~1992
669810014018860079 ~1993
669811911339623839 ~1992
669825111339650239 ~1992
669828711339657439 ~1992
669839511339679039 ~1992
669842511339685039 ~1992
66985909428709817710 ~1996
669888415359107299 ~1994
669889315359114499 ~1994
66989023160773655310 ~1995
669890631339781279 ~1992
669928191339856399 ~1992
66993361107189377710 ~1994
669983391339966799 ~1992
669994791339989599 ~1992
670000911340001839 ~1992
670013031340026079 ~1992
670047534020285199 ~1993
670058814020352879 ~1993
670074831340149679 ~1992
670079395360635139 ~1994
670101231340202479 ~1992
670128711340257439 ~1992
670129934020779599 ~1993
2251
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25-07-08