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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
42258323845166478 ~1991
42258743845174878 ~1991
42258803845176078 ~1991
422590816761452979 ~1993
422591812535550879 ~1992
42259319845186398 ~1991
42259799845195998 ~1991
422600412535602479 ~1992
42260051845201038 ~1991
42260171845203438 ~1991
42260639845212798 ~1991
42260651845213038 ~1991
42260891135234851310 ~1994
42261083845221678 ~1991
42261599211307995110 ~1994
42262919845258398 ~1991
42263939845278798 ~1991
42264143845282878 ~1991
42264263845285278 ~1991
42264311845286238 ~1991
42264503845290078 ~1991
42264539845290798 ~1991
42265031845300638 ~1991
42266219845324398 ~1991
42266363845327278 ~1991
Exponent Prime Factor Digits Year
42266579845331598 ~1991
42267443845348878 ~1991
42268139845362798 ~1991
42268151845363038 ~1991
422686073381488579 ~1992
422687572536125439 ~1992
42268883845377678 ~1991
422692876763085939 ~1993
42269543845390878 ~1991
42269723845394478 ~1991
42269999845399998 ~1991
42270071845401438 ~1991
422702594227025919 ~1992
422707936763326899 ~1993
42272423845448478 ~1991
422725013381800099 ~1992
42272963845459278 ~1991
42273251845465038 ~1991
42273659845473198 ~1991
42273779845475598 ~1991
422740793381926339 ~1992
42274679845493598 ~1991
42274703845494078 ~1991
42276187380485683110 ~1995
42276191845523838 ~1991
Exponent Prime Factor Digits Year
422773732536642399 ~1992
42278053194479043910 ~1994
42278123845562478 ~1991
42278783845575678 ~1991
42279203845584078 ~1991
422793113382344899 ~1992
42280211845604238 ~1991
42280321126840963110 ~1993
42281243845624878 ~1991
42281339845626798 ~1991
42281399845627998 ~1991
42282263845645278 ~1991
42282599845651998 ~1991
42283849126851547110 ~1993
42283931845678638 ~1991
42283991845679838 ~1991
42284171845683438 ~1991
422843095919803279 ~1993
42284999845699998 ~1991
42285959845719198 ~1991
42286043845720878 ~1991
42286427211432135110 ~1994
42286631845732638 ~1991
42286943845738878 ~1991
42287039845740798 ~1991
Exponent Prime Factor Digits Year
422870393382963139
42287183845743678 ~1991
42287471845749438 ~1991
42287879845757598 ~1991
42288419845768398 ~1991
42288971845779438 ~1991
42289139845782798 ~1991
42289343845786878 ~1991
42289679845793598 ~1991
42289823845796478 ~1991
422904012537424079 ~1992
42290411845808238 ~1991
42290471845809438 ~1991
422909393383275139 ~1992
42291071845821438 ~1991
42291143845822878 ~1991
42291383845827678 ~1991
422914372537486239 ~1992
42291923845838478 ~1991
42292823845856478 ~1991
422934773383478179 ~1992
42293903845878078 ~1991
422941012537646079 ~1992
42294443845888878 ~1991
42295163845903278 ~1991
2238
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26-10-25