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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
215171273873082879 ~1991
21517511430350238 ~1988
215176211291057279 ~1989
21517883430357678 ~1988
21518411430368238 ~1988
21518531430370638 ~1988
215186832151868319 ~1990
21519083430381678 ~1988
215191011291146079 ~1989
21519539430390798 ~1988
21519791430395838 ~1988
21519923430398478 ~1988
21520151430403038 ~1988
21520391430407838 ~1988
21520451430409038 ~1988
21520799430415998 ~1988
215209071721672579 ~1990
21521183430423678 ~1988
21521963430439278 ~1988
21522359430447198 ~1988
21522719430454398 ~1988
21522829253969382310 ~1993
21522911430458238 ~1988
21522971430459438 ~1988
215238971291433839 ~1989
Exponent Prime Factor Digits Year
215242814735341839 ~1991
215245931291475599 ~1989
215246778609870819 ~1991
21524831430496638 ~1988
21524939430498798 ~1988
21525551430511038 ~1988
21525719430514398 ~1988
21526391430527838 ~1988
21527783430555678 ~1988
21527939430558798 ~1988
215280371291682239 ~1989
21528863430577278 ~1988
215293032152930319 ~1990
21529499430589998 ~1988
215296371291778239 ~1989
21529883430597678 ~1988
21529979430599598 ~1988
21530471430609438 ~1988
215305671722445379 ~1990
21530711430614238 ~1988
21530903430618078 ~1988
21531479430629598 ~1988
215314811291888879 ~1989
21532223430644478 ~1988
21532499430649998 ~1988
Exponent Prime Factor Digits Year
215325171291951039 ~1989
215326971291961839 ~1989
21532799430655998 ~1988
21533723430674478 ~1988
215338512153385119 ~1990
21534251430685038 ~1988
21534479430689598 ~1988
21534839430696798 ~1988
21534899430697998 ~1988
21535499430709998 ~1988
21535643193820787110 ~1992
21535763430715278 ~1988
21535859430717198 ~1988
215361471722891779 ~1990
21536159430723198 ~1988
21536759430735198 ~1988
21536771430735438 ~1988
21537479430749598 ~1988
215374971292249839 ~1989
215375771292254639 ~1989
21537863430757278 ~1988
21538091430761838 ~1988
21538151430763038 ~1988
215384211292305279 ~1989
21538859430777198 ~1988
Exponent Prime Factor Digits Year
21538871430777438 ~1988
21539363430787278 ~1988
21539471430789438 ~1988
21540023430800478 ~1988
21540059430801198 ~1988
21540203430804078 ~1988
21540611430812238 ~1988
21540731430814638 ~1988
215407311723258499
215414771292488639 ~1989
215418432154184319 ~1990
21542063430841278 ~1988
21542231430844638 ~1988
215428791723430339 ~1990
215432112154321119 ~1990
21543443430868878 ~1988
21543803430876078 ~1988
21544751430895038 ~1988
215452032154520319 ~1990
21545351430907038 ~1988
21545663430913278 ~1988
215458336463749919 ~1991
21546383430927678 ~1988
21546851430937038 ~1988
215472593878506639 ~1991
1480
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25-06-08