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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
40769759815395198 ~1990
40770311815406238 ~1990
40771163815423278 ~1990
40771859815437198 ~1990
407718593261748739
407719313261754499 ~1992
40773119815462398 ~1990
40773143815462878 ~1990
407733532446401199 ~1992
40773443815468878 ~1990
40773923815478478 ~1990
40773983815479678 ~1990
40774523815490478 ~1990
40775411815508238 ~1990
40775963815519278 ~1990
40776503815530078 ~1990
407767135708739839 ~1992
40777013326216104110 ~1994
407772593262180739 ~1992
40778063815561278 ~1990
407785338971277279 ~1993
40778711815574238 ~1990
407814976525039539 ~1993
407825172446951039 ~1992
40782551815651038 ~1990
Exponent Prime Factor Digits Year
407827613262620899 ~1992
40782803815656078 ~1990
40783031815660638 ~1990
407835172447011039 ~1992
40784123815682478 ~1990
40784363815687278 ~1990
40784951815699038 ~1990
40785791815715838 ~1990
40786703815734078 ~1990
407870179788884099 ~1993
407883532447301199 ~1992
407890793263126339 ~1992
40789163815783278 ~1990
40789379815787598 ~1990
40789559815791198 ~1990
407899932447399599 ~1992
40791599815831998 ~1990
40793279815865598 ~1990
407936993263495939 ~1992
40797479815949598 ~1990
40797899815957998 ~1990
40798319815966398 ~1990
40799459815989198 ~1990
40799483815989678 ~1990
40800983816019678 ~1990
Exponent Prime Factor Digits Year
40801511816030238 ~1990
408023812448142879 ~1992
40803187367228683110 ~1994
40803443718140596910 ~1995
40803491816069838 ~1990
40805123816102478 ~1990
40805351816107038 ~1990
408065172448391039 ~1992
40807223816144478 ~1990
40807271816145438 ~1990
408078473264627779 ~1992
40808063816161278 ~1990
40808711816174238 ~1990
40808723816174478 ~1990
40810103816202078 ~1990
40810739816214798 ~1990
40813403816268078 ~1990
40813823816276478 ~1990
408152172448913039 ~1992
40816211816324238 ~1990
408162895714280479 ~1992
40816577489798924110 ~1995
408181317347263599 ~1993
408188572449131439 ~1992
40819199816383998 ~1990
Exponent Prime Factor Digits Year
408194234081942319 ~1992
40820159816403198 ~1990
40820291816405838 ~1990
40821359816427198 ~1990
40822109587838369710 ~1995
40822823816456478 ~1990
40823663498048688710 ~1995
40824323816486478 ~1990
40824911816498238 ~1990
40825139816502798 ~1990
40825919816518398 ~1990
40827131816542638 ~1990
40827719816554398 ~1990
40828031816560638 ~1990
40828499816569998 ~1990
40828583816571678 ~1990
40828811816576238 ~1990
40829339816586798 ~1990
40829543816590878 ~1990
40830011816600238 ~1990
408306413266451299 ~1992
408307394083073919 ~1992
40830851816617038 ~1990
40832999816659998 ~1990
408331732449990399 ~1992
1949
GIMPS The Prime Pages FactorDb.com
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25-06-08