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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
23878583477571678 ~1989
238786971432721839 ~1990
238791131432746799 ~1990
23879231477584638 ~1989
23879519477590398 ~1989
23879591477591838 ~1989
238799931432799599 ~1990
23880011477600238 ~1989
23880023477600478 ~1989
23880119477602398 ~1989
238805171432831039 ~1990
23880683477613678 ~1989
23881883477637678 ~1989
23882531477650638 ~1989
23882609128966088710 ~1992
23883059477661198 ~1989
23883071477661438 ~1989
23883599477671998 ~1989
23883659477673198 ~1989
238837011910696099 ~1990
23883719477674398 ~1989
23884271477685438 ~1989
23884799477695998 ~1989
238848771433092639 ~1990
238853714299366799 ~1991
Exponent Prime Factor Digits Year
238854171433125039 ~1990
23885651477713038 ~1989
23886143477722878 ~1989
23886311477726238 ~1989
23886491477729838 ~1989
23886839477736798 ~1989
23887103348751703910 ~1993
23887751477755038 ~1989
238885971433315839 ~1990
238886299555451619 ~1992
23888647138554152710 ~1992
23889059477781198 ~1989
23889119477782398 ~1989
23890631477812638 ~1989
23890871477817438 ~1989
23890931477818638 ~1989
23891201114677764910 ~1992
238914897645276499 ~1992
23891639477832798 ~1989
238919394300549039 ~1991
23892059477841198 ~1989
238925931433555599 ~1990
238926471911411779 ~1990
23892923477858478 ~1989
238933571433601439 ~1990
Exponent Prime Factor Digits Year
23893403477868078 ~1989
23893871477877438 ~1989
238947497168424719 ~1991
238952331433713999 ~1990
23895419477908398 ~1989
23895479477909598 ~1989
238960971911687779 ~1990
23896199477923998 ~1989
238966371433798239 ~1990
238968611433811679 ~1990
23896979477939598 ~1989
23897651477953038 ~1989
238976693345673679 ~1991
238979833823677299 ~1991
238985335735647939 ~1991
23899091477981838 ~1989
238994239559769219 ~1992
23899619477992398 ~1989
23900531478010638 ~1989
23900543478010878 ~1989
23901659478033198 ~1989
23901863478037278 ~1989
23902211478044238 ~1989
239027171434163039 ~1990
23902919478058398 ~1989
Exponent Prime Factor Digits Year
23903039478060798 ~1989
23903903478078078 ~1989
23904119478082398 ~1989
23904143478082878 ~1989
23904203478084078 ~1989
239044071912352579 ~1990
23904791478095838 ~1989
23904911478098238 ~1989
23905103478102078 ~1989
23905523478110478 ~1989
23905691478113838 ~1989
23906159478123198 ~1989
23906279478125598 ~1989
23906651478133038 ~1989
23906891478137838 ~1989
23906951478139038 ~1989
23907203478144078 ~1989
23907599478151998 ~1989
23908019478160398 ~1989
23908091478161838 ~1989
23908259478165198 ~1989
239085198128896479 ~1992
23908691478173838 ~1989
23909051478181038 ~1989
23909183478183678 ~1989
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25-04-13