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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
20829983416599678 ~1988
20830343416606878 ~1988
208316211249897279 ~1989
20832671416653438 ~1988
208330934999942339 ~1991
20833511416670238 ~1988
20833679416673598 ~1988
20833691416673838 ~1988
20834063416681278 ~1988
20834111416682238 ~1988
20834399416687998 ~1988
20834939416698798 ~1988
20835071416701438 ~1988
20835203416704078 ~1988
20835299416705998 ~1988
20835443416708878 ~1988
208365614584043439 ~1991
208367931250207599 ~1989
208370931250225599 ~1989
20837171416743438 ~1988
20837483416749678 ~1988
20837543416750878 ~1988
20838263416765278 ~1988
20838491416769838 ~1988
20839463416789278 ~1988
Exponent Prime Factor Digits Year
20839691416793838 ~1988
20840063416801278 ~1988
20840399416807998 ~1988
20840471416809438 ~1988
20840591416811838 ~1988
20841011416820238 ~1988
20842319416846398 ~1988
208423971250543839 ~1989
20842499416849998 ~1988
20842751416855038 ~1988
208427635002263139 ~1991
208428891667431139 ~1990
20844143416882878 ~1988
20844203416884078 ~1988
208442232084422319 ~1990
20844599416891998 ~1988
208446611250679679 ~1989
20845091416901838 ~1988
208452771667622179 ~1990
20845871416917438 ~1988
20845943416918878 ~1988
20846159416923198 ~1988
208469771250818639 ~1989
208472931250837599 ~1989
20847371416947438 ~1988
Exponent Prime Factor Digits Year
20847419416948398 ~1988
208475511667804099 ~1990
208480334586567279 ~1991
20848211416964238 ~1988
20848559416971198 ~1988
208485591667884739
20849483416989678 ~1988
20849903416998078 ~1988
20850311417006238 ~1988
208507616255228319 ~1991
208507632085076319 ~1990
20850779417015598 ~1988
20851223417024478 ~1988
20851679417033598 ~1988
208516872085168719 ~1990
20851991417039838 ~1988
20852171417043438 ~1988
20852411417048238 ~1988
208525213336403379 ~1990
208527011251162079 ~1989
20852803137628499910 ~1992
20852831417056638 ~1988
20853023417060478 ~1988
20853319120949250310 ~1992
208535411251212479 ~1989
Exponent Prime Factor Digits Year
20853803417076078 ~1988
20853851417077038 ~1988
20854271417085438 ~1988
20854919417098398 ~1988
208556211251337279 ~1989
20855759417115198 ~1988
208557677090960799 ~1991
20856131417122638 ~1988
20856359417127198 ~1988
20856383417127678 ~1988
20857043417140878 ~1988
208572171251433039 ~1989
208573211251439279 ~1989
20858111417162238 ~1988
208581971251491839 ~1989
208583895006013379 ~1991
208586811251520879 ~1989
208589691668717539 ~1990
208596531251579199 ~1989
20859659417193198 ~1988
20860331417206638 ~1988
208603933337662899 ~1990
208603971668831779 ~1990
20860811417216238 ~1988
208610171251661039 ~1989
1457
GIMPS The Prime Pages FactorDb.com
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25-06-08