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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
498470532990823199 ~1992
498470813987766499 ~1993
498474372990846239 ~1992
49848791996975838 ~1991
498496037975936499 ~1993
498515212991091279 ~1992
498516293988130339 ~1993
49852139997042798 ~1991
49852343997046878 ~1991
49852391997047838 ~1991
49852457119645896910 ~1994
498526976979377599 ~1993
49853519239296891310 ~1994
49854611997092238 ~1991
49854923997098478 ~1991
49855853279192776910 ~1995
49856039997120798 ~1991
49856069358963696910 ~1995
49856363997127278 ~1991
498565073988520579 ~1993
49856531997130638 ~1991
498577012991462079 ~1992
498590777977452339 ~1993
49859399997187998 ~1991
49859651997193038 ~1991
Exponent Prime Factor Digits Year
49862363997247278 ~1991
49862531997250638 ~1991
49863491997269838 ~1991
498684732992108399 ~1992
49869367239372961710 ~1994
49869791997395838 ~1991
49869863997397278 ~1991
498700994987009919 ~1993
49871161109716554310 ~1994
49872983997459678 ~1991
49873871997477438 ~1991
498747012992482079 ~1992
49875011997500238 ~1991
49875599997511998 ~1991
49876091997521838 ~1991
49876199997523998 ~1991
49876559997531198 ~1991
498777478977994479 ~1993
49880543997610878 ~1991
498811572992869439 ~1992
498811877980989939 ~1993
49881803997636078 ~1991
498818172992909039 ~1992
49882499997649998 ~1991
49884563997691278 ~1991
Exponent Prime Factor Digits Year
49885343997706878 ~1991
49886737119728168910 ~1994
498877973991023779 ~1993
49887899997757998 ~1991
49888379997767598 ~1991
498910878980395679 ~1993
498922577982761139 ~1993
49893379359232328910 ~1995
498946612993679679 ~1992
498951412993708479 ~1992
49901003998020078 ~1991
49902299998045998 ~1991
49903079998061598 ~1991
499033332994199999 ~1992
49904903998098078 ~1991
49906943998138878 ~1991
49911419998228398 ~1991
49911443998228878 ~1991
49912283998245678 ~1991
49913663998273278 ~1991
49913939998278798 ~1991
499143172994859039 ~1992
49914659998293198 ~1991
49916519998330398 ~1991
499181234991812319 ~1993
Exponent Prime Factor Digits Year
49919399998387998 ~1991
49920911998418238 ~1991
49921691998433838 ~1991
49921867199687468110 ~1994
49922759998455198 ~1991
49923217119815720910 ~1994
49923683998473678 ~1991
499241572995449439 ~1992
49924883998497678 ~1991
499254532995527199 ~1992
49926599998531998 ~1991
499266732995600399 ~1992
49926839998536798 ~1991
499270913994167299 ~1993
49927523998550478 ~1991
499275972995655839 ~1992
499282994992829919 ~1993
49928579998571598 ~1991
499287172995723039 ~1992
49928951998579038 ~1991
49929479998589598 ~1991
499329371547921047111 ~1996
499331718987970799 ~1993
49933283998665678 ~1991
49934231998684638 ~1991
2078
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25-06-29