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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
127988391023907139 ~1988
127992192303859439 ~1989
12799541767972478 ~1988
127997691791967679 ~1989
127998117167894179 ~1990
128002871280028719 ~1988
12800831256016638 ~1986
12801083256021678 ~1986
12801479256029598 ~1986
12801577768094638 ~1988
128016471024131779 ~1988
128018211024145699 ~1988
12801923256038478 ~1986
128021712048347379 ~1989
12802199256043998 ~1986
12802403256048078 ~1986
12802987176681220710 ~1991
128030711280307119 ~1988
12804251256085038 ~1986
12804371256087438 ~1986
12804433768265998 ~1988
128046071280460719 ~1988
12805703256114078 ~1986
12805763256115278 ~1986
12805823256116478 ~1986
Exponent Prime Factor Digits Year
12806099256121998 ~1986
12806173768370398 ~1988
128062491792874879 ~1989
12806597768395838 ~1988
12807013768420798 ~1988
12807131256142638 ~1986
12807191256143838 ~1986
12807563256151278 ~1986
12807601768456078 ~1988
12807721768463278 ~1988
128077991280779919 ~1988
128078591280785919 ~1988
12808091256161838 ~1986
12808283256165678 ~1986
12808319256166398 ~1986
12808511256170238 ~1986
12808583256171678 ~1986
12808739256174798 ~1986
12808979256179598 ~1986
12809101768546078 ~1988
12809557768573438 ~1988
12810071256201438 ~1986
12810191256203838 ~1986
12811343256226878 ~1986
12811499256229998 ~1986
Exponent Prime Factor Digits Year
12811511256230238 ~1986
12811679256233598 ~1986
12811703256234078 ~1986
128119272049908339 ~1989
12811937768716238 ~1988
128119373843581119
12812183256243678 ~1986
12812291256245838 ~1986
12813023256260478 ~1986
128135232050163699 ~1989
12813959256279198 ~1986
12813973768838398 ~1988
12815017768901038 ~1988
12815137768908238 ~1988
128156111281561119 ~1988
128158393075801379 ~1989
12816179256323598 ~1986
12816457768987438 ~1988
128164991281649919 ~1988
128166072306989279 ~1989
128171511025372099 ~1988
12817823256356478 ~1986
12817943256358878 ~1986
12818231256364638 ~1986
12818699256373998 ~1986
Exponent Prime Factor Digits Year
128189292820164399 ~1989
128194392307499039 ~1989
12819923256398478 ~1986
12819959256399198 ~1986
12820799256415998 ~1986
128207991025663939
128214771025718179 ~1988
12821531256430638 ~1986
12821717769303038 ~1988
12822059256441198 ~1986
128220671282206719 ~1988
12822203256444078 ~1986
12822503256450078 ~1986
12822599256451998 ~1986
128230799489078479 ~1990
12823229164137331310 ~1991
12823493769409598 ~1988
12823717769423038 ~1988
12823859256477198 ~1986
128241671282416719 ~1988
12824303256486078 ~1986
128243471282434719 ~1988
12824543256490878 ~1986
12824881769492878 ~1988
12824891256497838 ~1986
1160
GIMPS The Prime Pages FactorDb.com
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25-06-29