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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
12167663243353278 ~1986
12168239243364798 ~1986
12168257163054643910 ~1991
12168839243376798 ~1986
12168851973508098 ~1988
12169361973548898 ~1988
12169853730191198 ~1988
121699571947193139 ~1989
12169973730198398 ~1988
12170057973604578 ~1988
12170189973615138 ~1988
12170303243406078 ~1986
12170771243415438 ~1986
12171539973723138 ~1988
12171671243433438 ~1986
12171671973733698
12171683243433678 ~1986
12171917730315038 ~1988
12172691243453838 ~1986
12172753730365198 ~1988
12172933730375998 ~1988
121731791217317919 ~1988
12173303243466078 ~1986
12173459243469198 ~1986
12173519243470398 ~1986
Exponent Prime Factor Digits Year
12173723243474478 ~1986
12173779223997533710 ~1991
12173891243477838 ~1986
12173951243479038 ~1986
12174059243481198 ~1986
12174131243482638 ~1986
12174143243482878 ~1986
12174161730449678 ~1988
121741871217418719 ~1988
12174257730455438 ~1988
12174803243496078 ~1986
12175133730507998 ~1988
12175259243505198 ~1986
12175739243514798 ~1986
121757992191643839 ~1989
12176123243522478 ~1986
12176231243524638 ~1986
12176603243532078 ~1986
12177059243541198 ~1986
12177353730641198 ~1988
121774491704842879 ~1988
12177701974216098 ~1988
121780511217805119 ~1988
12178163243563278 ~1986
12178213730692798 ~1988
Exponent Prime Factor Digits Year
12178757730725438 ~1988
12178921730735278 ~1988
12179099243581998 ~1986
12179099974327938
12179243243584878 ~1986
121793033166618799 ~1989
12179381730762878 ~1988
12179677730780638 ~1988
12179819243596398 ~1986
12180173730810398 ~1988
121802831218028319 ~1988
12180599243611998 ~1986
12180671243613438 ~1986
12180683243613678 ~1986
121807034872281219 ~1990
12181391243627838 ~1986
12181577730894638 ~1988
12181751974540098 ~1988
12181837730910238 ~1988
12181957730917438 ~1988
121824191218241919 ~1988
121828392923881379 ~1989
12182903243658078 ~1986
12183757731025438 ~1988
12183937731036238 ~1988
Exponent Prime Factor Digits Year
12184241731054478 ~1988
12184391243687838 ~1986
12184477194951632110 ~1991
12184499243689998 ~1986
12184559243691198 ~1986
121847592193256639 ~1989
12184961974796898 ~1988
121851891705926479 ~1988
121853512193363199 ~1989
12185399243707998 ~1986
121854191218541919 ~1988
12185497731129838 ~1988
12185639243712798 ~1986
12186001731160078 ~1988
12186101731166078 ~1988
12186719243734398 ~1986
12186737731204238 ~1988
12186737974938978
12186851243737038 ~1986
121868993899807699 ~1989
121869071218690719 ~1988
12187271243745438 ~1986
12187463243749278 ~1986
121876031218760319 ~1988
12187811243756238 ~1986
1173
GIMPS The Prime Pages FactorDb.com
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26-01-11