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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
1989188033978376079 ~1996
1989204113978408239 ~1996
1989210593978421199 ~1996
1989248993978497999 ~1996
198928553119357131910 ~1997
198930533119358319910 ~1997
1989345233978690479 ~1996
1989345593978691199 ~1996
198939863994699315110 ~1999
198946673119368003910 ~1997
1989484793978969599 ~1996
1989525113979050239 ~1996
1989541313979082639 ~1996
198960757119376454310 ~1997
1989656993979313999 ~1996
198968743198968743110 ~1998
1989698393979396799 ~1996
198976081119385648710 ~1997
1989855713979711439 ~1996
198991393119394835910 ~1997
198992611358186699910 ~1998
1989984833979969679 ~1996
1989991913979983839 ~1996
199006487159205189710 ~1997
1990074113980148239 ~1996
Exponent Prime Factor Digits Year
1990278833980557679 ~1996
1990287233980574479 ~1996
199038473119423083910 ~1997
199038967199038967110 ~1998
199046447159237157710 ~1997
1990472633980945279 ~1996
199049827199049827110 ~1998
1990500833981001679 ~1996
1990563113981126239 ~1996
199062817119437690310 ~1997
1990640033981280079 ~1996
199070099159256079310 ~1997
1990728833981457679 ~1996
1990769033981538079 ~1996
199078769159263015310 ~1997
1990836233981672479 ~1996
199091077915818954310 ~1999
1990968233981936479 ~1996
199102663318564260910 ~1998
1991053313982106639 ~1996
1991056313982112639 ~1996
199109971318575953710 ~1998
1991125913982251839 ~1996
1991198393982396799 ~1996
199120391159296312910 ~1997
Exponent Prime Factor Digits Year
199125637119475382310 ~1997
1991261393982522799 ~1996
1991272313982544639 ~1996
199128673438083080710 ~1998
1991307593982615199 ~1996
1991309033982618079 ~1996
1991326913982653839 ~1996
199133533119480119910 ~1997
199135009477924021710 ~1998
1991355113982710239 ~1996
1991406713982813439 ~1996
1991469713982939439 ~1996
199148687159318949710 ~1997
1991528393983056799 ~1996
199153909438138599910 ~1998
199159997278823995910 ~1998
199162079159329663310 ~1997
199164811199164811110 ~1998
1991678033983356079 ~1996
1991731793983463599 ~1996
1991734313983468639 ~1996
1991755793983511599 ~1996
199179691318687505710 ~1998
1991816633983633279 ~1996
1991849393983698799 ~1996
Exponent Prime Factor Digits Year
1991914913983829839 ~1996
1991915393983830799 ~1996
1991945033983890079 ~1996
199197287159357829710 ~1997
1992067193984134399 ~1996
1992098633984197279 ~1996
1992182633984365279 ~1996
199222217119533330310 ~1997
1992239033984478079 ~1996
199224107517982678310 ~1999
1992247313984494639 ~1996
1992280193984560399 ~1996
199229417119537650310 ~1997
1992327233984654479 ~1996
1992354833984709679 ~1996
1992358913984717839 ~1996
1992412913984825839 ~1996
1992435713984871439 ~1996
1992438131394706691111 ~2000
199246937159397549710 ~1997
1992503513985007039 ~1996
1992530033985060079 ~1996
1992534593985069199 ~1996
1992570833985141679 ~1996
199263313438379288710 ~1998
2769
GIMPS The Prime Pages FactorDb.com
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25-05-04