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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
15595439311908798 ~1987
155960293431126399 ~1990
15596099311921998 ~1987
15596291311925838 ~1987
15596459311929198 ~1987
15596677935800638 ~1988
15596699311933998 ~1987
155967671559676719 ~1989
155968573743245699 ~1990
15597203311944078 ~1987
15597359311947198 ~1987
155978091247824739 ~1989
15598931311978638 ~1987
15599281935956878 ~1988
155993691247949539 ~1989
15599471311989438 ~1987
155997833743947939 ~1990
15600503312010078 ~1987
15600731312014638 ~1987
15600863312017278 ~1987
15601381936082878 ~1988
15601643312032878 ~1987
15601763312035278 ~1987
156020571248164579 ~1989
15602113936126798 ~1988
Exponent Prime Factor Digits Year
15602459312049198 ~1987
15602831312056638 ~1987
15603101936186078 ~1988
15603383312067678 ~1987
15603839312076798 ~1987
156038511248308099 ~1989
156040371248322979 ~1989
15604091312081838 ~1987
156045072496721139 ~1989
15604679312093598 ~1987
15604931312098638 ~1987
15605021936301278 ~1988
15605519312110398 ~1987
15605693936341598 ~1988
15606131312122638 ~1987
156065712809182799 ~1990
15606917936415038 ~1988
156070495930678639 ~1990
15607121936427278 ~1988
15607199312143998 ~1987
15607499312149998 ~1987
15608231312164638 ~1987
156087771248702179 ~1989
15608891312177838 ~1987
156089112809603999 ~1990
Exponent Prime Factor Digits Year
15609059312181198 ~1987
15609299312185998 ~1987
15609701936582078 ~1988
15610079312201598 ~1987
156102532185435439 ~1989
156103671248829379 ~1989
15610691312213838 ~1987
156111378430013999 ~1991
15611161936669678 ~1988
15611339312226798 ~1987
15611591312231838 ~1987
15611819312236398 ~1987
156122871248982979 ~1989
15612481936748878 ~1988
15612743312254878 ~1987
15612959312259198 ~1987
15612983312259678 ~1987
15613151312263038 ~1987
1561315122710889444712
15613931312278638 ~1987
15614003312280078 ~1987
15614099312281998 ~1987
15614411312288238 ~1987
156145671249165379 ~1989
15614657936879438 ~1988
Exponent Prime Factor Digits Year
156156792810822239 ~1990
15615791312315838 ~1987
15615863312317278 ~1987
15615959312319198 ~1987
15616373936982398 ~1988
15616501936990078 ~1988
15616631312332638 ~1987
15616943312338878 ~1987
15616961937017678 ~1988
15617093937025598 ~1988
15617999312359998 ~1987
15618059312361198 ~1987
15618371312367438 ~1987
156187212498995379 ~1989
15618923312378478 ~1987
15619091312381838 ~1987
15620219312404398 ~1987
15620411312408238 ~1987
15620471312409438 ~1987
156207471249659779 ~1989
15620939312418798 ~1987
15621497937289838 ~1988
156214972187009599
156215273749166499 ~1990
15622091312441838 ~1987
1305
GIMPS The Prime Pages FactorDb.com
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25-11-02