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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
647619231295238479 ~1992
647620911295241839 ~1992
647621511295243039 ~1992
647641975181135779 ~1993
647660333885961999 ~1993
647678031295356079 ~1992
647680075181440579 ~1993
647715591295431199 ~1992
647744991295489999 ~1992
647759991295519999 ~1992
647763591295527199 ~1992
64779811103647697710 ~1994
647823715182589699 ~1993
647835773887014639 ~1993
647844591295689199 ~1992
647856591295713199 ~1992
647872795182982339 ~1993
647907111295814239 ~1992
647926911295853839 ~1992
647932933887597599 ~1993
647932996479329919 ~1994
647944911295889839 ~1992
647965191295930399 ~1992
647981213887887279 ~1993
64799249246237146310 ~1995
Exponent Prime Factor Digits Year
647994591295989199 ~1992
648010311296020639 ~1992
648017695184141539 ~1993
648020836480208319 ~1994
648025615184204899 ~1993
648027436480274319 ~1994
648031431296062879 ~1992
648047031296094079 ~1992
648062391296124799 ~1992
648070276480702719 ~1994
648085373888512239 ~1993
648091499073280879 ~1994
64809709155543301710 ~1995
648098631296197279 ~1992
648105231296210479 ~1992
648112333888673999 ~1993
648113991296227999 ~1992
648118191296236399 ~1992
648121791296243599 ~1992
648123231296246479 ~1992
648136311296272639 ~1992
648139516481395119 ~1994
648142791296285599 ~1992
648142933888857599 ~1993
648146991296293999 ~1992
Exponent Prime Factor Digits Year
648150591296301199 ~1992
648157315185258499 ~1993
648184191296368399 ~1992
648187791296375599 ~1992
648193733889162399 ~1993
648199615185596899 ~1993
648206031296412079 ~1992
648208979074925599 ~1994
648216111296432239 ~1992
648222231296444479 ~1992
648241911296483839 ~1992
648249231296498479 ~1992
64825547116685984710 ~1994
648262311296524639 ~1992
648269391296538799 ~1992
648304311296608639 ~1992
648306591296613199 ~1992
648308031296616079 ~1992
648310075186480579 ~1993
648318831296637679 ~1992
648336231296672479 ~1992
648344991296689999 ~1992
648385311296770639 ~1992
648396111296792239 ~1992
648421191296842399 ~1992
Exponent Prime Factor Digits Year
648426013890556079 ~1993
648434515187476099 ~1993
648447133890682799 ~1993
648462831296925679 ~1992
648478015187824099 ~1993
648479631296959279 ~1992
648490911296981839 ~1992
64849573103759316910 ~1994
648510715188085699 ~1993
648522231297044479 ~1992
648524573891147439 ~1993
648527511297055039 ~1992
648544791297089599 ~1992
648546831297093679 ~1992
648570111297140239 ~1992
648579715188637699 ~1993
648584391297168799 ~1992
648593631297187279 ~1992
648596991297193999 ~1992
648597373891584239 ~1993
648624111297248239 ~1992
648660711297321439 ~1992
648665631297331279 ~1992
648671511297343039 ~1992
64867991272445562310 ~1995
2177
GIMPS The Prime Pages FactorDb.com
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25-04-13