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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
19553543391070878 ~1988
19553711391074238 ~1988
19553771391075438 ~1988
195540791955407919 ~1990
19554179391083598 ~1988
19554299391085998 ~1988
19554719391094398 ~1988
19555043391100878 ~1988
195551811173310879 ~1989
195563231955632319 ~1990
195565194693564579 ~1991
195565911564527299 ~1989
19556951391139038 ~1988
19557617516321088910 ~1993
19557623391152478 ~1988
19557899391157998 ~1988
19558691391173838 ~1988
19559063391181278 ~1988
19559159391183198 ~1988
195594371173566239 ~1989
195595991955959919 ~1990
19559951391199038 ~1988
19560059391201198 ~1988
19560323391206478 ~1988
19560503391210078 ~1988
Exponent Prime Factor Digits Year
195612071956120719 ~1990
195612611173675679 ~1989
19561343391226878 ~1988
19561439391228798 ~1988
195614811564918499 ~1989
19561499391229998 ~1988
195615131173690799 ~1989
19561859391237198 ~1988
19562243391244878 ~1988
195622611173735679 ~1989
19562531391250638 ~1988
195625731173754399 ~1989
19562831391256638 ~1988
19563119391262398 ~1988
19563431391268638 ~1988
195641771173850639 ~1989
195650171173901039 ~1989
195650591956505919 ~1990
195651711565213699 ~1989
19565783391315678 ~1988
19565831391316638 ~1988
19566359391327198 ~1988
195663611173981679 ~1989
195666673130666739 ~1990
195667611174005679 ~1989
Exponent Prime Factor Digits Year
19566863391337278 ~1988
19567403391348078 ~1988
19568123391362478 ~1988
19568303391366078 ~1988
195687292739622079 ~1990
195687771174126639 ~1989
195688311565506499 ~1989
19569299391385998 ~1988
19569311391386238 ~1988
19569419391388398 ~1988
19569611391392238 ~1988
19569899391397998 ~1988
195699731174198399 ~1989
195701692739823679 ~1990
19570259426631646310 ~1993
195703371565626979 ~1989
19570559391411198 ~1988
195709131174254799 ~1989
195710332739944639 ~1990
19571291391425838 ~1988
195717313131476979 ~1990
19571759391435198 ~1988
19571771391435438 ~1988
19572263391445278 ~1988
19573139391462798 ~1988
Exponent Prime Factor Digits Year
19573199391463998 ~1988
19573343391466878 ~1988
19573583391471678 ~1988
195739971174439839 ~1989
19574003391480078 ~1988
19575071391501438 ~1988
19575383391507678 ~1988
195755831957558319 ~1990
19575779391515598 ~1988
19575851391517038 ~1988
19576031391520638 ~1988
195761531174569199 ~1989
19576169203592157710 ~1992
195763071566104579 ~1989
19576379391527598 ~1988
195763972740695599 ~1990
195767515089955279 ~1991
19577111391542238 ~1988
19577303391546078 ~1988
19577471391549438 ~1988
19577483391549678 ~1988
195775271957752719 ~1990
195777171566217379 ~1989
19577903391558078 ~1988
19578263391565278 ~1988
1462
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25-12-14