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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
19269599385391998 ~1988
19270259385405198 ~1988
19270763385415278 ~1988
19271039385420798 ~1988
19271639385432798 ~1988
19271831385436638 ~1988
192718811156312879 ~1989
19271951385439038 ~1988
19272083385441678 ~1988
19272119385442398 ~1988
192725631838602510311 ~1994
192727791541822339 ~1989
192729971156379839 ~1989
19273703385474078 ~1988
19275083385501678 ~1988
19276151385523038 ~1988
19276511385530238 ~1988
192768011156608079 ~1989
19276919385538398 ~1988
192773931156643599 ~1989
192774771156648639 ~1989
19277591385551838 ~1988
19277603385552078 ~1988
19277963385559278 ~1988
192784633084554099 ~1990
Exponent Prime Factor Digits Year
192786311927863119 ~1990
192787731156726399 ~1989
19278839385576798 ~1988
19278851385577038 ~1988
19278911385578238 ~1988
192793211156759279 ~1989
19281263385625278 ~1988
19281299385625998 ~1988
192812999255023539
19281851385637038 ~1988
192818511542548099
19281959385639198 ~1988
19282019385640398 ~1988
19283171385663438 ~1988
19283279385665598 ~1988
192834171157005039 ~1989
192834971157009839 ~1989
19283723385674478 ~1988
19283843385676878 ~1988
19283963385679278 ~1988
192844071542752579 ~1989
192845331157071999 ~1989
19284731385694638 ~1988
19285583385711678 ~1988
192864373085829939 ~1990
Exponent Prime Factor Digits Year
19286459154291672110 ~1992
19286471385729438 ~1988
19286699385733998 ~1988
192872692700217679 ~1990
192874671542997379 ~1989
19288151385763038 ~1988
19288739385774798 ~1988
19288883385777678 ~1988
19288991385779838 ~1988
19289051385781038 ~1988
192891133086258099 ~1990
19289353138883341710 ~1992
19289423385788478 ~1988
192895511928955119 ~1990
19290059385801198 ~1988
19290083385801678 ~1988
19290311385806238 ~1988
192903171157419039 ~1989
192903291543226339 ~1989
192907511929075119 ~1990
19290779385815598 ~1988
19291271385825438 ~1988
192912971157477839 ~1989
19291691385833838 ~1988
19291823385836478 ~1988
Exponent Prime Factor Digits Year
19292051385841038 ~1988
192923271543386179 ~1989
19292459385849198 ~1988
19292519385850398 ~1988
19292579385851598 ~1988
19293503385870078 ~1988
192935511543484099 ~1989
192938171157629039 ~1989
192940811157644879 ~1989
19294211385884238 ~1988
19294283385885678 ~1988
192947331157683999 ~1989
19294811385896238 ~1988
19295099385901998 ~1988
19295291385905838 ~1988
19295723142788350310 ~1992
19295819385916398 ~1988
19296083385921678 ~1988
19297259385945198 ~1988
192978073087649139 ~1990
192985011157910079 ~1989
192992711929927119 ~1990
19299443385988878 ~1988
19299503385990078 ~1988
19299719385994398 ~1988
1388
GIMPS The Prime Pages FactorDb.com
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25-04-13