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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
12823493769409598 ~1988
12823717769423038 ~1988
12823859256477198 ~1987
128241671282416719 ~1988
12824303256486078 ~1987
128243471282434719 ~1988
12824543256490878 ~1987
12824881769492878 ~1988
12824891256497838 ~1987
12825023256500478 ~1987
12825083256501678 ~1987
12825623256512478 ~1987
12826631256532638 ~1987
12826811256536238 ~1987
12827159256543198 ~1987
12827233769633998 ~1988
12827291256545838 ~1987
12827411256548238 ~1987
12827693769661598 ~1988
12827891256557838 ~1987
12827953769677198 ~1988
12828601769716078 ~1988
128286192309151439 ~1989
12828719256574398 ~1987
128291296157981939 ~1990
Exponent Prime Factor Digits Year
12829163256583278 ~1987
12829457769767438 ~1988
12829501769770078 ~1988
12830351256607038 ~1987
128309112309563999 ~1989
12830957769857438 ~1988
128310671283106719 ~1988
128311311026490499 ~1988
12831419256628398 ~1987
12831911256638238 ~1987
12831961769917678 ~1988
128320374876174079 ~1990
12832817769969038 ~1988
12832871256657438 ~1987
12833063256661278 ~1987
128335491026683939 ~1988
12833603256672078 ~1987
12834001770040078 ~1988
12834401770064078 ~1988
12834551256691038 ~1987
12834817770089038 ~1988
12835019256700398 ~1987
128350215134008419 ~1990
128350611026804899 ~1988
128351295134051619 ~1990
Exponent Prime Factor Digits Year
12835177770110638 ~1988
128359391283593919 ~1988
12836053770163198 ~1988
12836459256729198 ~1987
12836953770217198 ~1988
12837017770221038 ~1988
12837437369718185710 ~1992
12837577770254638 ~1988
12837661770259678 ~1988
12837719256754398 ~1987
12837893770273598 ~1988
12837991105271526310 ~1990
12838079256761598 ~1987
12838201770292078 ~1988
128382195135287619 ~1990
128383371027066979 ~1988
12838597770315838 ~1988
12838643256772878 ~1987
12838751256775038 ~1987
128389212824562639 ~1989
128391492824612799 ~1989
12839293770357598 ~1988
128394433081466339 ~1989
12839501770370078 ~1988
12840203256804078 ~1987
Exponent Prime Factor Digits Year
12840539256810798 ~1987
12840791256815838 ~1987
12841033770461998 ~1988
12841091256821838 ~1987
12841201770472078 ~1988
12841259256825198 ~1987
128415711027325699 ~1988
12841583256831678 ~1987
12841883256837678 ~1987
12842051256841038 ~1987
12842183256843678 ~1987
12842237770534238 ~1988
12842317770539038 ~1988
128424911284249119 ~1988
12842591256851838 ~1987
12842699256853998 ~1987
12842783256855678 ~1987
12843073770584398 ~1988
12843101770586078 ~1988
12843203256864078 ~1987
12843253770595198 ~1988
12843599256871998 ~1987
12843953770637198 ~1988
12843983256879678 ~1987
12844283256885678 ~1987
1239
GIMPS The Prime Pages FactorDb.com
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26-07-19