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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
18162359363247198 ~1988
18162863363257278 ~1988
181635535449065919 ~1991
181636993269465839 ~1990
181637092542919279 ~1990
181648131089888799 ~1989
18165011363300238 ~1988
18166283363325678 ~1988
181663732543292239 ~1990
181666132543325839 ~1990
18166763363335278 ~1988
18166943363338878 ~1988
18166979363339598 ~1988
181674891453399139 ~1989
181676474360235299 ~1990
18167783363355678 ~1988
18167939363358798 ~1988
18168071363361438 ~1988
181682513270285199 ~1990
181687011090122079 ~1989
181687211090123279 ~1989
18168791363375838 ~1988
18168851363377038 ~1988
18169031363380638 ~1988
18169271363385438 ~1988
Exponent Prime Factor Digits Year
181694271453554179 ~1989
18169559363391198 ~1988
18170063363401278 ~1988
181701793270632239 ~1990
181702332907237299 ~1990
18170423363408478 ~1988
18170651363413038 ~1988
18170723363414478 ~1988
18170819363416398 ~1988
18171119363422398 ~1988
181712594361102179 ~1990
18171683363433678 ~1988
18171743363434878 ~1988
18171899363437998 ~1988
181725732907611699 ~1990
18172631363452638 ~1988
18172751363455038 ~1988
181732731090396399 ~1989
18173339363466798 ~1988
181733391453867139
18174179363483598 ~1988
181747812907964979 ~1990
181747871817478719 ~1989
181751393271525039 ~1990
181755611090533679 ~1989
Exponent Prime Factor Digits Year
18175583363511678 ~1988
18175739363514798 ~1988
18175823363516478 ~1988
181766511454132099 ~1989
181773612908377779 ~1990
181775415453262319 ~1991
181776971090661839 ~1989
18177899363557998 ~1988
18178631363572638 ~1988
181788131090728799 ~1989
18178859363577198 ~1988
18179123363582478 ~1988
181795871817958719 ~1989
181797532545165439 ~1990
18179951363599038 ~1988
181799691454397539 ~1989
18180059363601198 ~1988
18180731363614638 ~1988
18181259363625198 ~1988
181814211090885279 ~1989
181815111454520899 ~1989
18181739363634798 ~1988
18182303363646078 ~1988
18183299363665998 ~1988
18183839363676798 ~1988
Exponent Prime Factor Digits Year
181839432909430899 ~1990
18184499363689998 ~1988
181847171091083039 ~1989
18185171363703438 ~1988
181853171091119039 ~1989
181853331091119999 ~1989
18185423363708478 ~1988
18185819363716398 ~1988
1818613727813877927912 ~1997
18186263363725278 ~1988
18186359363727198 ~1988
18186611363732238 ~1988
181867574364821699 ~1990
18186851363737038 ~1988
181868531091211199 ~1989
181871931091231599 ~1989
18187259363745198 ~1988
18187511363750238 ~1988
18187751363755038 ~1988
18187931363758638 ~1988
18188603363772078 ~1988
18189179363783598 ~1988
18189299363785998 ~1988
18189599363791998 ~1988
18190283363805678 ~1988
1398
GIMPS The Prime Pages FactorDb.com
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25-10-20