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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.
Exp. Prime Factor Digits Year
7857263157145278 ~1985
7857271347291378310 ~1991
7857359157147198 ~1985
7857401471444078 ~1986
7857719157154398 ~1985
7858211628656898 ~1986
7858223157164478 ~1985
78582374243447999 ~1988
7858427628674178 ~1986
7858453117876795110 ~1989
7858561471513678 ~1986
78589977544637139 ~1989
78591292986469039 ~1988
7859161471549678 ~1986
7859297471557838 ~1986
7859339157186798 ~1985
7859441628755298 ~1986
7859531157190638 ~1985
7859591628767298 ~1986
7859639157192798 ~1985
7860371628829698 ~1986
7860389628831138 ~1986
7860617471637038 ~1986
7860659157213198 ~1985
7860719157214398 ~1985
Exp. Prime Factor Digits Year
7860731157214638 ~1985
7860757471645438 ~1986
7861153471669198 ~1986
7861207786120718 ~1987
7861499157229998 ~1985
7861583157231678 ~1985
78618239591424079 ~1989
78620472673095999 ~1988
7862081471724878 ~1986
7862081628966498
7862363157247278 ~1985
7862453471747198 ~1986
7862579157251598 ~1985
7862579629006338
7862819157256398 ~1985
7863497471809838 ~1986
78635219436225219 ~1989
7863551629084098 ~1986
7863593174571764710 ~1990
7863613471816798 ~1986
7863643786364318 ~1987
7864019157280398 ~1985
7864033471841998 ~1986
7864093471845598 ~1986
7864151157283038 ~1985
Exp. Prime Factor Digits Year
7864187629134978 ~1986
7864391629151298 ~1986
78645011730190239 ~1987
7864589629167138 ~1986
78646392673977279 ~1988
78646731101054239 ~1987
7864823157296478 ~1985
7864957471897438 ~1986
78650471887611299 ~1987
7865171157303438 ~1985
7865357629228578 ~1986
7865519157310398 ~1985
7865519629241538
7865617471937038 ~1986
78661511258584179 ~1987
7866191157323838 ~1985
78663492359904719 ~1988
7866431157328638 ~1985
78665171258642739 ~1987
7866539157330798 ~1985
7866557471993438 ~1986
7866673472000398 ~1986
7866701472002078 ~1986
7866791157335838 ~1985
7866923157338478 ~1985
Exp. Prime Factor Digits Year
78670492360114719 ~1988
7867103157342078 ~1985
7867313472038798 ~1986
7867571629405698 ~1986
7868293472097598 ~1986
7868363157367278 ~1985
7868593472115598 ~1986
7868897629511778 ~1986
7868999157379998 ~1985
78690311259044979 ~1987
7869053472143198 ~1986
7869131157382638 ~1985
7869203157384078 ~1985
7869241472154478 ~1986
7869371157387438 ~1985
78695932360877919 ~1988
7869739786973918 ~1987
7869881472192878 ~1986
7869899157397998 ~1985
7870091157401838 ~1985
7870391157407838 ~1985
78705472046342239 ~1988
78705612361168319 ~1988
7870679157413598 ~1985
7870697472241838 ~1986
909
GIMPS The Prime Pages FactorDb.com
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25-11-02