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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
42488723849774478 ~1991
42493103849862078 ~1991
424933373399466979 ~1992
424938074249380719 ~1992
42494531849890638 ~1991
42494579849891598 ~1991
42496631849932638 ~1991
424978812549872879 ~1992
42499091849981838 ~1991
424998019349956239 ~1993
425001972550011839 ~1992
425002812550016879 ~1992
42500483850009678 ~1991
42502283850045678 ~1991
425038735950542239 ~1993
425041514250415119 ~1992
42506063850121278 ~1991
42506279850125598 ~1991
42506531850130638 ~1991
425076976801231539 ~1993
425089132550534799 ~1992
42510311850206238 ~1991
42511673136037353710 ~1994
42513599850271998 ~1991
42516191850323838 ~1991
Exponent Prime Factor Digits Year
42516203850324078 ~1991
42516671850333438 ~1991
42516899850337998 ~1991
42517571850351438 ~1991
42518699850373998 ~1991
42519671850393438 ~1991
42519923850398478 ~1991
425199597653592639 ~1993
425200972551205839 ~1992
42520559850411198 ~1991
42522071850441438 ~1991
42522443850448878 ~1991
42524543850490878 ~1991
42525683850513678 ~1991
42526019850520398 ~1991
42526031850520638 ~1991
42526811850536238 ~1991
42527843850556878 ~1991
425288332551729999 ~1992
42529079850581598 ~1991
42529439850588798 ~1991
42529463850589278 ~1991
425302394253023919 ~1992
425304293402434339 ~1992
425321772551930639 ~1992
Exponent Prime Factor Digits Year
425345813402766499 ~1992
42535939144622192710 ~1994
42536519850730398 ~1991
42536843850736878 ~1991
42537431178657210310 ~1994
42539039850780798 ~1991
425401673403213379 ~1992
42540551850811038 ~1991
42541043850820878 ~1991
425410972552465839 ~1992
42541729127625187110 ~1993
42541799850835998 ~1991
425424772552548639 ~1992
42545183850903678 ~1991
42545663850913278 ~1991
42545879850917598 ~1991
42545999850919998 ~1991
42546083850921678 ~1991
42547751850955038 ~1991
425478674254786719 ~1992
425487113403896899 ~1992
425488932552933599 ~1992
42549043102117703310 ~1993
42549491850989838 ~1991
42550559851011198 ~1991
Exponent Prime Factor Digits Year
425510234255102319 ~1992
42551039851020798 ~1991
42551519178716379910 ~1994
42551699851033998 ~1991
42551699136165436910
425518572553111439 ~1992
42552743851054878 ~1991
425533939361746479 ~1993
42553631851072638 ~1991
42554159851083198 ~1991
42554483851089678 ~1991
42554591851091838 ~1991
42556571851131438 ~1991
42556823851136478 ~1991
42557423851148478 ~1991
42558023851160478 ~1991
425585594255855919 ~1992
425595132553570799 ~1992
42560291851205838 ~1991
42561839851236798 ~1991
42562379851247598 ~1991
42563831851276638 ~1991
42564059851281198 ~1991
42564239851284798 ~1991
425643172553859039 ~1992
1954
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25-05-04