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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
3933577236014638 ~1984
3933731314698498 ~1984
3933871708096798 ~1985
3934261629481778 ~1985
393449978689997 ~1982
393458378691677 ~1982
39348731180461919 ~1985
393500378700077 ~1982
3935117236107038 ~1984
3935257629641138 ~1985
393541178708237 ~1982
39354112833495939
3935417236125038 ~1984
393547178709437 ~1982
3935627314850178 ~1984
3935719393571918 ~1984
393575978715197 ~1982
3935879314870338 ~1984
3936007393600718 ~1984
39360431574417219 ~1986
3936271393627118 ~1984
3936301629808178 ~1985
3936577629852338 ~1985
393668378733677 ~1982
393689978737997 ~1982
Exp. Prime Factor Digits Year
393701978740397 ~1982
3937561236253678 ~1984
3937567393756718 ~1984
3937771393777118 ~1984
3938257945181698 ~1985
393830378766077 ~1982
3938303945192738
3938447315075778 ~1984
3938477236308638 ~1984
3938633551408638 ~1985
393869978773997 ~1982
39388271339201199 ~1985
393919178783837 ~1982
3939337236360238 ~1984
393944378788877 ~1982
3939521236371278 ~1984
393967178793437 ~1982
393977978795597 ~1982
3939791315183298 ~1984
393983978796797 ~1982
393989978797997 ~1982
3939953236397198 ~1984
3939953551593438
39400211182006319 ~1985
3940177236410638 ~1984
Exp. Prime Factor Digits Year
3940247315219778 ~1984
3940319315225538 ~1984
3940367315229378 ~1984
3940373236422398 ~1984
394043978808797 ~1982
394045178809037 ~1982
39405619457346419 ~1988
394076378815277 ~1982
39407992837375299 ~1986
394082378816477 ~1982
3940933236455998 ~1984
3941053236463198 ~1984
394118378823677 ~1982
394136378827277 ~1982
3941447945947298 ~1985
394147178829437 ~1982
3941551630648178 ~1985
394202378840477 ~1982
3942137315370978 ~1984
394231178846237 ~1982
394255178851037 ~1982
3942569551959678 ~1985
3942677315414178 ~1984
3942721236563278 ~1984
3942989315439138 ~1984
Exp. Prime Factor Digits Year
39429891182896719
3943153236589198 ~1984
3943153867493678
394321178864237 ~1982
394325978865197 ~1982
394331978866397 ~1982
394345178869037 ~1982
394363178872637 ~1982
39436371498582079 ~1986
3943673552114238 ~1985
3943717630994738 ~1985
3943769315501538 ~1984
394379978875997 ~1982
39438532208557699 ~1986
394387178877437 ~1982
394388378877677 ~1982
3944009552161278 ~1985
394418378883677 ~1982
3944249315539938 ~1984
3944249552194878
3944411315552898 ~1984
3944497631119538 ~1985
3944597552243598 ~1985
394471178894237 ~1982
3944839710071038 ~1985
591
GIMPS The Prime Pages FactorDb.com
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25-06-15