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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
4893851391508098 ~1985
4893937293636238 ~1984
489427197885437 ~1983
4894277293656638 ~1984
4894349391547938 ~1985
489494397898877 ~1983
489527997905597 ~1983
48953231664409839 ~1986
4895377293722638 ~1984
4895399391631938 ~1985
489545997909197 ~1983
4895503489550318 ~1985
4895533293731998 ~1984
48956291174950979 ~1986
4895641293738478 ~1984
489577197915437 ~1983
4895827881248878 ~1986
489584397916877 ~1983
4895993685439038 ~1985
4896077391686178 ~1985
489623997924797 ~1983
48963491175123779 ~1986
489638397927677 ~1983
4896457293787438 ~1984
489649197929837 ~1983
Exp. Prime Factor Digits Year
489665997933197 ~1983
4896659391732738
489671997934397 ~1983
489686397937277 ~1983
489697197939437 ~1983
489710397942077 ~1983
48972372252729039 ~1987
4897337293840238 ~1984
4897337391786978
489758397951677 ~1983
489781197956237 ~1983
4898021293881278 ~1984
489812397962477 ~1983
4898297293897838 ~1984
4898687391894978 ~1985
48986871273658639
4898813293928798 ~1984
4898819391905538 ~1985
4898833293929998 ~1984
4898981391918498 ~1985
4899001783840178 ~1985
4899073293944398 ~1984
4899197391935778 ~1985
4899317293959038 ~1984
489937197987437 ~1983
Exp. Prime Factor Digits Year
4899481783916978 ~1985
489955197991037 ~1983
4899599391967938 ~1985
4899641293978478 ~1984
4899647391971778 ~1985
489980397996077 ~1983
4899821391985698 ~1985
49001871176044899 ~1986
490021198004237 ~1983
490031998006397 ~1983
490033198006637 ~1983
4900331882059598
4900501294030078 ~1984
4900517294031038 ~1984
490052398010477 ~1983
4900601294036078 ~1984
49006631960265219 ~1986
490079998015997 ~1983
4900957294057438 ~1984
4901009392080738 ~1985
490105198021037 ~1983
490111198022237 ~1983
4901153294069198 ~1984
4901249392099938 ~1985
4901453294087198 ~1984
Exp. Prime Factor Digits Year
4901537392122978 ~1985
490157998031597 ~1983
4901657686231998 ~1985
4901851882333198 ~1986
4902691490269118 ~1985
490304398060877 ~1983
49030431176730339
49030793530216899 ~1987
49032191667094479 ~1986
49032192843867039
490331998066397 ~1983
4903397294203838 ~1984
4903553294213198 ~1984
490357198071437 ~1983
4903637392290978 ~1985
49038191667298479 ~1986
4904077294244638 ~1984
490430398086077 ~1983
490435198087037 ~1983
4904353294261198 ~1984
4904657392372578 ~1985
4904699392375938 ~1985
490475998095197 ~1983
4905079490507918 ~1985
4905301294318078 ~1984
669
GIMPS The Prime Pages FactorDb.com
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25-04-13