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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
126618192279127439 ~1989
126620571012964579 ~1988
12662651253253038 ~1986
12663023253260478 ~1986
12663191253263838 ~1986
12663251253265038 ~1986
126633596078412339 ~1990
126633891013071139 ~1988
12663743253274878 ~1986
12664319205161967910 ~1991
12664499253289998 ~1986
12664871253297438 ~1986
12664913759894798 ~1988
12665123253302478 ~1986
12665183253303678 ~1986
12665423253308478 ~1986
126654411013235299 ~1988
12665531253310638 ~1986
12666299253325998 ~1986
12666539253330798 ~1986
12666701760002078 ~1988
12666851253337038 ~1986
12666911253338238 ~1986
12667019253340398 ~1986
12667153760029198 ~1988
Exponent Prime Factor Digits Year
12667223253344478 ~1986
12667331253346638 ~1986
12667559253351198 ~1986
12667883253357678 ~1986
12667943253358878 ~1986
12668039253360798 ~1986
12668483253369678 ~1986
126687311266873119 ~1988
12668819253376398 ~1986
12668891253377838 ~1986
12668951253379038 ~1986
126690791266907919 ~1988
12669263253385278 ~1986
12669383253387678 ~1986
12669851253397038 ~1986
12670139253402798 ~1986
12670319253406398 ~1986
126705471013643779 ~1988
126705473040931299
126709971773939599 ~1989
126710273041046499 ~1989
12671339253426798 ~1986
12671861760311678 ~1988
12672083253441678 ~1986
126729671267296719 ~1988
Exponent Prime Factor Digits Year
12673163253463278 ~1986
126736491013891939 ~1988
12673751253475038 ~1986
12673799253475998 ~1986
126738471013907779 ~1988
12674003253480078 ~1986
12674279253485598 ~1986
126744771013958179 ~1988
12674533760471998 ~1988
12675203253504078 ~1986
126753672028058739 ~1989
126758331774616639 ~1989
126759132028146099 ~1989
12676019253520398 ~1986
12676043253520878 ~1986
12676259253525198 ~1986
126762591014100739
126763791014110339 ~1988
126768477099034339 ~1990
12676991253539838 ~1986
12677417760645038 ~1988
126776711267767119 ~1988
12678119253562398 ~1986
12678131253562638 ~1986
12678371253567438 ~1986
Exponent Prime Factor Digits Year
12678839253576798 ~1986
126793134057380179 ~1989
12679379253587598 ~1986
126794111267941119 ~1988
126801791268017919 ~1988
12680243253604878 ~1986
12680411253608238 ~1986
12680441760826478 ~1988
12680579253611598 ~1986
12680711253614238 ~1986
126820973804629119 ~1989
12682199253643998 ~1986
12682301760938078 ~1988
12682451253649038 ~1986
12682643253652878 ~1986
12682757760965438 ~1988
126829511268295119 ~1988
12682991253659838 ~1986
12683299296789196710 ~1992
12683999253679998 ~1986
12684323253686478 ~1986
126843891014751139 ~1988
126845573805367119 ~1989
12684773761086398 ~1988
12685199253703998 ~1986
1137
GIMPS The Prime Pages FactorDb.com
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25-04-13