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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
19835603396712078 ~1988
19835951396719038 ~1988
198364571459963235311 ~1994
198365993570587839 ~1990
19837379396747598 ~1988
19837739396754798 ~1988
19838051396761038 ~1988
19838579396771598 ~1988
198387739125835599 ~1991
19838939396778798 ~1988
19838963396779278 ~1988
19839299396785998 ~1988
198400211190401279 ~1989
198401331190407999 ~1989
19840259396805198 ~1988
19840319396806398 ~1988
19840571396811438 ~1988
19840631396812638 ~1988
19840703396814078 ~1988
19840763396815278 ~1988
198410775952323119 ~1991
19841579396831598 ~1988
19842143396842878 ~1988
19842241202390858310 ~1992
198433571190601439 ~1989
Exponent Prime Factor Digits Year
19843679396873598 ~1988
19844171396883438 ~1988
198444375953331119 ~1991
198448971587591779 ~1989
198453471587627779 ~1989
198453473572162479
19845863396917278 ~1988
198462011190772079 ~1989
19846223396924478 ~1988
19846283396925678 ~1988
198465234763165539 ~1991
198465373175445939 ~1990
19846979396939598 ~1988
198471291587770339 ~1989
19847963396959278 ~1988
198480891587847139 ~1989
19848611396972238 ~1988
19848623396972478 ~1988
198487131190922799 ~1989
19848743396974878 ~1988
198488111984881119 ~1990
19849139396982798 ~1988
19849451396989038 ~1988
198496391984963919 ~1990
19849751396995038 ~1988
Exponent Prime Factor Digits Year
198507771588062179 ~1989
19851431397028638 ~1988
19851479397029598 ~1988
198514871985148719 ~1990
19851709138961963110 ~1992
19851803397036078 ~1988
19851983397039678 ~1988
19852103397042078 ~1988
19852223397044478 ~1988
19852499397049998 ~1988
19852643397052878 ~1988
198529813176476979 ~1990
19853303397066078 ~1988
198534371191206239 ~1989
198535673573642079 ~1990
19853891397077838 ~1988
198540171588321379 ~1989
19854179397083598 ~1988
19854203397084078 ~1988
19855259397105198 ~1988
198554713176875379 ~1990
198554871588438979 ~1989
19855679397113598 ~1988
19856099397121998 ~1988
198561013176976179 ~1990
Exponent Prime Factor Digits Year
19856183397123678 ~1988
19856363397127278 ~1988
19856519397130398 ~1988
19856891397137838 ~1988
198573531191441199 ~1989
19857611397152238 ~1988
19857731397154638 ~1988
198582771191496639 ~1989
19858343397166878 ~1988
19858379397167598 ~1988
198585771981885984711 ~1995
19858859397177198 ~1988
19859159397183198 ~1988
19859363397187278 ~1988
198596331191577999 ~1989
19860311397206238 ~1988
198603971191623839 ~1989
19860593158884744110 ~1992
19860611397212238 ~1988
198609774766634499 ~1991
19861031397220638 ~1988
198615313177844979 ~1990
198616931191701599 ~1989
198617571191705439 ~1989
198621111588968899 ~1989
1458
GIMPS The Prime Pages FactorDb.com
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25-10-20