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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
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
6431963128639278 ~1984
6432131128642638 ~1984
64322692444262239 ~1987
6432397385943838 ~1985
6432599128651998 ~1984
6432623128652478 ~1984
6432913385974798 ~1985
6433093385985598 ~1985
Exp. Prime Factor Digits Year
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
6436151128723038 ~1984
Exp. Prime Factor Digits Year
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
6440429901660078 ~1986
Exp. Prime Factor Digits Year
6440459128809198 ~1984
6440459515236738
64405431545730339 ~1987
6440771128815438 ~1984
64408091545794179 ~1987
6440831128816638 ~1984
6440881386452878 ~1985
6440891128817838 ~1984
6441119128822398 ~1984
6441163644116318 ~1986
6441241386474478 ~1985
64413191159437439 ~1986
6441371128827438 ~1984
6441389515311138 ~1986
6441499644149918 ~1986
64415271159474879 ~1986
6441569515325538 ~1986
64419071159543279 ~1986
6441977515358178 ~1986
64419773478667599
6442057386523438 ~1985
6442223128844478 ~1984
6442283128845678 ~1984
6442361386541678 ~1985
6442427515394178 ~1986
793
GIMPS The Prime Pages FactorDb.com
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25-06-01