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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
21690131433802638 ~1988
21690239433804798 ~1988
21690611433812238 ~1988
21690983433819678 ~1988
216911771301470639 ~1989
21691343433826878 ~1988
21691619433832398 ~1988
21691751433835038 ~1988
21691979433839598 ~1988
21692063433841278 ~1988
21692579433851598 ~1988
21692903433858078 ~1988
21693299433865998 ~1988
216933614772539439 ~1991
216940611301643679 ~1989
21694763433895278 ~1988
216948171301689039 ~1989
21695339433906798 ~1988
21695483433909678 ~1988
21695627212617144710 ~1992
21695903433918078 ~1988
21696179433923598 ~1988
21696491433929838 ~1988
216970071735760579 ~1990
21697283433945678 ~1988
Exponent Prime Factor Digits Year
21697451433949038 ~1988
21697463433949278 ~1988
21697811433956238 ~1988
216985611301913679 ~1989
21698639433972798 ~1988
21698879433977598 ~1988
21699071433981438 ~1988
216994993905909839 ~1991
21700043434000878 ~1988
21700103434002078 ~1988
21700379434007598 ~1988
21700979434019598 ~1988
21701243434024878 ~1988
217014973472239539 ~1990
21701651434033038 ~1988
217022571736180579 ~1990
21702419434048398 ~1988
21702491434049838 ~1988
217029771302178639 ~1989
21703631434072638 ~1988
21704411434088238 ~1988
217044673472714739 ~1990
21705083434101678 ~1988
21706259434125198 ~1988
217063371302380239 ~1989
Exponent Prime Factor Digits Year
21706523434130478 ~1988
21706571434131438 ~1988
21706823434136478 ~1988
21708539434170798 ~1988
21708623434172478 ~1988
217090272170902719 ~1990
21709763434195278 ~1988
21709931434198638 ~1988
21710159434203198 ~1988
217101596947250899
217105032813681188911 ~1995
21710519434210398 ~1988
21711083434221678 ~1988
21712319434246398 ~1988
21713603434272078 ~1988
21713639195422751110 ~1992
217138971737111779 ~1990
217140673908532079 ~1991
21714851434297038 ~1988
217152971302917839 ~1989
217153611737228899 ~1990
217158531302951199 ~1989
21715931434318638 ~1988
21717119434342398 ~1988
21717191434343838 ~1988
Exponent Prime Factor Digits Year
21717383434347678 ~1988
21717539434350798 ~1988
21717791434355838 ~1988
21718439434368798 ~1988
21718583434371678 ~1988
21718751434375038 ~1988
21718943434378878 ~1988
21719051434381038 ~1988
21719339434386798 ~1988
21719459434389198 ~1988
21720131434402638 ~1988
21720431434408638 ~1988
21720499104258395310 ~1992
21720563434411278 ~1988
21720899434417998 ~1988
21720911434418238 ~1988
217212011303272079 ~1989
217212535213100739 ~1991
21721559434431198 ~1988
217219011303314079 ~1989
217219071737752579 ~1990
217221673475546739 ~1990
21722699434453998 ~1988
21723323434466478 ~1988
217236411303418479 ~1989
1470
GIMPS The Prime Pages FactorDb.com
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25-04-13