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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
6686539668653918 ~1986
6686723133734478 ~1984
6686783133735678 ~1984
6686861401211678 ~1985
66870131471142879 ~1987
66871271069940339 ~1987
6687133401227998 ~1985
6687283668728318 ~1986
66875891605021379 ~1987
6687623133752478 ~1984
6687881401272878 ~1985
6688051668805118 ~1986
6688127535050178 ~1986
6688211133764238 ~1984
6688393401303598 ~1985
66885593210508339 ~1988
6688793401327598 ~1985
6688919133778398 ~1984
6688943133778878 ~1984
6689363133787278 ~1984
6689399535151938 ~1986
6689537535162978 ~1986
6689537936535198
6689623668962318 ~1986
6689699535175938 ~1986
Exp. Prime Factor Digits Year
6689723133794478 ~1984
6689741401384478 ~1985
6689999133799998 ~1984
6690059133801198 ~1984
6690119133802398 ~1984
6690863133817278 ~1984
6691079535286338 ~1986
6691277401476638 ~1985
6691337401480238 ~1985
6691403133828078 ~1984
6691481401488878 ~1985
6691891669189118 ~1986
6692051535364098 ~1986
6692173401530398 ~1985
66921833747622499 ~1988
66921971606127299 ~1987
66923411472315039 ~1987
6692593401555598 ~1985
6692669535413538 ~1986
6692771133855438 ~1984
6692923669292318 ~1986
6693083133861678 ~1984
6693307669330718 ~1986
6693419133868398 ~1984
6693539133870798 ~1984
Exp. Prime Factor Digits Year
6693931669393118 ~1986
6693941535515298 ~1986
6694019535521538 ~1986
6694217401653038 ~1985
66943092008292719 ~1987
66943937497720179 ~1989
6694463133889278 ~1984
6694511535560898 ~1986
6694643133892878 ~1984
66946931472832479 ~1987
6694823133896478 ~1984
6694871133897438 ~1984
66948799640625779 ~1989
6694997535599778 ~1986
6695153401709198 ~1985
6695393401723598 ~1985
6695981401758878 ~1985
6696023133920478 ~1984
6696083133921678 ~1984
6696091669609118 ~1986
6696293401777598 ~1985
6696331669633118 ~1986
6696383133927678 ~1984
6696451669645118 ~1986
6696779133935598 ~1984
Exp. Prime Factor Digits Year
6696787669678718 ~1986
6696857937559998 ~1986
6696923133938478 ~1984
6697157401829438 ~1985
6697193401831598 ~1985
6697241401834478 ~1985
6697283133945678 ~1984
6697441401846478 ~1985
6697511133950238 ~1984
6697591669759118 ~1986
66976193214857139 ~1988
6697721401863278 ~1985
6697721535817698
6697759669775918 ~1986
6697897401873838 ~1985
6698053401883198 ~1985
6698339133966798 ~1984
6698383669838318 ~1986
6698807535904578 ~1986
6698903133978078 ~1984
6699367669936718 ~1986
6699401535952098 ~1986
6699541401972478 ~1985
6699703669970318 ~1986
6699743133994878 ~1984
822
GIMPS The Prime Pages FactorDb.com
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25-09-07