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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
6425117385507038 ~1985
6425351128507038 ~1984
64255933469820239 ~1988
6425899237758263110 ~1990
6425927514074178 ~1986
64259278225186579
6426041385562478 ~1985
6426071128521438 ~1984
64261631028186099 ~1986
64262271670819039 ~1987
6426317385579038 ~1985
6426383128527678 ~1984
6426401385584078 ~1985
6426599128531998 ~1984
6426611128532238 ~1984
64267133984562079 ~1988
6426851128537038 ~1984
6426851514148098
6426907642690718 ~1986
64269197198149299 ~1988
6426923128538478 ~1984
64272733470727439 ~1988
6427331128546638 ~1984
6427433385645998 ~1985
6427703128554078 ~1984
Exp. Prime Factor Digits Year
6428117514249378 ~1986
6428777158147914310 ~1989
6428813385728798 ~1985
6428833385729998 ~1985
6429221514337698 ~1986
6429343642934318 ~1986
6429359128587198 ~1984
6429373430767991110 ~1990
64294131543059139 ~1987
6429877385792638 ~1985
6429937385796238 ~1985
6430253385815198 ~1985
6430261385815678 ~1985
6430661385839678 ~1985
6430799128615998 ~1984
6430883128617678 ~1984
6431221385873278 ~1985
64312331028997299 ~1986
6431963128639278 ~1984
6432131128642638 ~1984
64322692444262239 ~1987
6432397385943838 ~1985
6432599128651998 ~1984
6432623128652478 ~1984
6432913385974798 ~1985
Exp. Prime Factor Digits Year
6433093385985598 ~1985
6433201385992078 ~1985
6433211128664238 ~1984
6433241385994478 ~1985
6433379514670338 ~1986
64339631029434099 ~1986
64342991544231779 ~1987
6434303128686078 ~1984
6434531128690638 ~1984
6434537386072238 ~1985
6434669514773538 ~1986
64347131029554099 ~1986
6434921514793698 ~1986
6435083128701678 ~1984
6435179128703598 ~1984
6435311128706238 ~1984
6435413386124798 ~1985
6435431128708638 ~1984
6435479128709598 ~1984
64356011029696179 ~1986
6436019128720398 ~1984
6436019514881538
6436091128721838 ~1984
6436091514887298
6436121386167278 ~1985
Exp. Prime Factor Digits Year
6436151128723038 ~1984
6436211128724238 ~1984
6436379128727598 ~1984
6436589514927138 ~1986
6437021514961698 ~1986
6437303128746078 ~1984
6437423128748478 ~1984
6437663128753278 ~1984
6437699128753998 ~1984
6437887643788718 ~1986
64379571545109699 ~1987
64380791545138979 ~1987
6438143128762878 ~1984
6438251128765038 ~1984
6438431128768638 ~1984
64384571030153139 ~1986
64386611030185779 ~1986
6438893386333598 ~1985
6438923128778478 ~1984
6439177386350638 ~1985
6439259128785198 ~1984
6439619128792398 ~1984
6439703128794078 ~1984
6439949515195938 ~1986
6440099128801998 ~1984
821
GIMPS The Prime Pages FactorDb.com
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26-03-15