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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
7863593174571764710 ~1990
7863613471816798 ~1986
7863643786364318 ~1987
7864019157280398 ~1985
7864033471841998 ~1986
7864093471845598 ~1986
7864151157283038 ~1985
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
Exp. Prime Factor Digits Year
78665171258642739 ~1987
7866539157330798 ~1985
7866557471993438 ~1986
7866673472000398 ~1986
7866701472002078 ~1986
7866791157335838 ~1985
7866923157338478 ~1985
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
7869739786973918 ~1987
7869881472192878 ~1986
7869899157397998 ~1985
Exp. Prime Factor Digits Year
7870091157401838 ~1985
7870391157407838 ~1985
78705472046342239 ~1988
78705612361168319 ~1988
7870679157413598 ~1985
7870697472241838 ~1986
7870721472243278 ~1986
7870721629657698
7870739629659138 ~1986
7871081629686498 ~1986
7871183157423678 ~1985
78712192518790099 ~1988
7871293472277598 ~1986
78714731259435699 ~1987
7871483157429678 ~1985
7871519629721538 ~1986
7871579157431598 ~1985
7871597472295838 ~1986
78715991416887839 ~1987
7871621629729698 ~1986
7871711157434238 ~1985
7871761472305678 ~1986
7871933472315998 ~1986
7872353472341198 ~1986
7872437472346238 ~1986
Exp. Prime Factor Digits Year
7872443157448878 ~1985
7872637472358238 ~1986
7872793472367598 ~1986
7872803157456078 ~1985
7873157629852578 ~1986
7873223157464478 ~1985
7873477472408638 ~1986
78735071259761139 ~1987
7873511157470238 ~1985
7873559157471198 ~1985
7873753472425198 ~1986
7874011787401118 ~1987
7874039157480798 ~1985
78740711259851379 ~1987
7874129629930338 ~1986
7874467787446718 ~1987
7874627629970178 ~1986
78751931732542479 ~1987
7875299630023938 ~1986
78753891102554479 ~1987
7875551157511038 ~1985
7875697472541838 ~1986
7876103157522078 ~1985
7876343157526878 ~1985
7876433472585998 ~1986
895
GIMPS The Prime Pages FactorDb.com
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25-07-08