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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
181422771088536639 ~1989
18142823362856478 ~1988
18142991362859838 ~1988
18143123362862478 ~1988
181432491451459939 ~1989
18143459362869198 ~1988
18144011362880238 ~1988
181442811451542499 ~1989
181456611451652899 ~1989
18146291362925838 ~1988
18147119362942398 ~1988
181471671451773379 ~1989
18147191362943838 ~1988
181473731088842399 ~1989
18147611362952238 ~1988
18147971362959438 ~1988
181479771451838179 ~1989
18148271362965438 ~1988
18149459362989198 ~1988
18149471362989438 ~1988
18149819362996398 ~1988
18150673130684845710 ~1991
18150791363015838 ~1988
181510731089064399 ~1989
181517037623715279 ~1991
Exponent Prime Factor Digits Year
181517411089104479 ~1989
18152219363044398 ~1988
181526231815262319 ~1989
18153071363061438 ~1988
18153251363065038 ~1988
18153659363073198 ~1988
181541932541587039 ~1990
181550771089304639 ~1989
181554611089327679 ~1989
18155471363109438 ~1988
181559571452476579 ~1989
18156179363123598 ~1988
181561971089371839 ~1989
18156503363130078 ~1988
18156851363137038 ~1988
18156923363138478 ~1988
181574991452599939 ~1989
18157883363157678 ~1988
181581371089488239 ~1989
18158639363172798 ~1988
18158999363179998 ~1988
18159299363185998 ~1988
18159419363188398 ~1988
181599891452799139 ~1989
18160091363201838 ~1988
Exponent Prime Factor Digits Year
18160379363207598 ~1988
18160463363209278 ~1988
18160511363210238 ~1988
181607411089644479 ~1989
18160799363215998 ~1988
181610571452884579 ~1989
18161399363227998 ~1988
181616211089697279 ~1989
181616571089699439 ~1989
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
Exponent Prime Factor Digits Year
18167939363358798 ~1988
18168071363361438 ~1988
181682513270285199 ~1990
181687011090122079 ~1989
181687211090123279 ~1989
18168791363375838 ~1988
18168851363377038 ~1988
18169031363380638 ~1988
18169271363385438 ~1988
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
1387
GIMPS The Prime Pages FactorDb.com
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25-09-07