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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.
Exponent Prime Factor Digits Year
11978579239571598 ~1986
119785795031003199
11978581718714878 ~1987
119786111197861119 ~1988
11978867958309378 ~1988
11978893718733598 ~1987
11979497958359778 ~1988
11979659239593198 ~1986
11979911239598238 ~1986
11979983239599678 ~1986
11980781958462498 ~1988
119808773594263119 ~1989
11980901958472098 ~1988
119811176469803199 ~1990
11981197718871838 ~1987
119813172875516099 ~1989
11981357958508578 ~1988
11981363239627278 ~1986
11981603239632078 ~1986
11982023239640478 ~1986
119820377668503699 ~1990
11982071958565698 ~1988
119825471198254719 ~1988
119828111917249779 ~1988
11982851239657038 ~1986
Exponent Prime Factor Digits Year
11983379958670338 ~1988
11983393719003598 ~1987
11983403239668078 ~1986
119835072157031279 ~1989
11983571239671438 ~1986
11983901719034078 ~1987
11984051239681038 ~1986
11984653719079198 ~1987
11984663239693278 ~1986
11984783239695678 ~1986
11984857719091438 ~1987
11984939239698798 ~1986
119855513835376339 ~1989
11985593719135598 ~1987
11985839239716798 ~1986
11985977719158638 ~1987
119861471198614719 ~1988
11986211239724238 ~1986
11986237719174238 ~1987
11986571239731438 ~1986
11986573719194398 ~1987
11986661958932898 ~1988
11986811239736238 ~1986
119869511198695119 ~1988
11987141958971298 ~1988
Exponent Prime Factor Digits Year
11987291958983298 ~1988
11987471239749438 ~1986
11988143239762878 ~1986
11988191239763838 ~1986
119882411918118579 ~1988
119883671198836719 ~1988
11988617719317038 ~1987
11988637719318238 ~1987
11988671959093698 ~1988
11988719239774398 ~1986
11988841719330478 ~1987
11989163239783278 ~1986
11989177719350638 ~1987
11989511239790238 ~1986
11989511959160898
11990009959200738 ~1988
11990401719424078 ~1987
11990483239809678 ~1986
11990519239810398 ~1986
119906175755496179 ~1990
11990777959262178 ~1988
11990999239819998 ~1986
11991097719465838 ~1987
11991131239822638 ~1986
11991481719488878 ~1987
Exponent Prime Factor Digits Year
11991601719496078 ~1987
11991719239834398 ~1986
11991977719518638 ~1987
11991977959358178
11992217719533038 ~1987
11992511239850238 ~1986
11992559239851198 ~1986
11992583239851678 ~1986
119928911199289119 ~1988
11993453719607198 ~1987
11993963239879278 ~1986
11994001719640078 ~1987
11994077959526178 ~1988
11994097719645838 ~1987
119942771919084339 ~1988
11994397719663838 ~1987
11995079239901598 ~1986
11995261719715678 ~1987
11995391239907838 ~1986
11995721959657698 ~1988
11995883239917678 ~1986
11996113719766798 ~1987
11996197719771838 ~1987
11996381719782878 ~1987
11996533719791998 ~1987
1159
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25-12-14