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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
18635783372715678 ~1988
18635999372719998 ~1988
186361931118171599 ~1989
18636731372734638 ~1988
18636857100639027910 ~1991
18636899372737998 ~1988
18637319372746398 ~1988
18637331372746638 ~1988
18637439372748798 ~1988
18637523372750478 ~1988
18637823372756478 ~1988
18638003372760078 ~1988
18638219372764398 ~1988
18639311372786238 ~1988
18639479372789598 ~1988
18639839372796798 ~1988
18640019372800398 ~1988
18640403372808078 ~1988
186408771118452639 ~1989
18640883372817678 ~1988
186413511491308099 ~1989
18641471372829438 ~1988
18641999372839998 ~1988
186428391491427139 ~1989
186429415592882319 ~1991
Exponent Prime Factor Digits Year
18643511372870238 ~1988
18643799372875998 ~1988
186438171118629039 ~1989
18644459372889198 ~1988
186446874474724899 ~1990
186456911864569119 ~1989
186457211118743279 ~1989
18646079372921598 ~1988
18646151372923038 ~1988
186463611118781679 ~1989
18646403372928078 ~1988
18647003372940078 ~1988
18647099372941998 ~1988
186471194475308579 ~1990
18647243372944878 ~1988
186474073356533279 ~1990
186485832983773299 ~1990
18648599372971998 ~1988
186487811118926879 ~1989
18648803372976078 ~1988
18649199372983998 ~1988
18649223372984478 ~1988
186492731118956399 ~1989
186496011491968099 ~1989
186497472983959539 ~1990
Exponent Prime Factor Digits Year
18650123373002478 ~1988
18650279373005598 ~1988
18650543373010878 ~1988
18650699373013998 ~1988
186507131119042799 ~1989
18650771373015438 ~1988
18651323373026478 ~1988
18651851373037038 ~1988
186518811492150499 ~1989
186519531119117199 ~1989
186524092611337279 ~1990
186524571492196579 ~1989
18652619373052398 ~1988
186535971119215839 ~1989
18653963373079278 ~1988
18654263373085278 ~1988
18654659373093198 ~1988
18654719373094398 ~1988
18654791373095838 ~1988
18654983373099678 ~1988
186554575596637119 ~1991
18655979373119598 ~1988
18656003373120078 ~1988
18656219373124398 ~1988
18656411373128238 ~1988
Exponent Prime Factor Digits Year
18656669194029357710 ~1992
18656999373139998 ~1988
186571611119429679 ~1989
18657239373144798 ~1988
18657839373156798 ~1988
18658043373160878 ~1988
18658319373166398 ~1988
186583571119501439 ~1989
18659519373190398 ~1988
18659759373195198 ~1988
18660623373212478 ~1988
186614171119685039 ~1989
18661639242601307110 ~1992
18661739373234798 ~1988
18661859373237198 ~1988
18661991373239838 ~1988
186619971119719839 ~1989
18662291373245838 ~1988
18662639373252798 ~1988
186626591866265919 ~1989
18662711373254238 ~1988
186627113359287999
186629471093648694311 ~1994
18663119373262398 ~1988
18663779373275598 ~1988
1381
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25-06-08