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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
24910313636905279 ~1986
249109149821837 ~1981
2491123597869538 ~1984
24911711046291839 ~1984
2491211797187538 ~1984
2491289348780478 ~1983
2491289597909378
2491471249147118 ~1983
2491471996588418
249152349830477 ~1981
2491589747476718 ~1984
2491757149505438 ~1982
24917777176317779 ~1986
2491961149517678 ~1982
2492093149525598 ~1982
24921111395582179 ~1985
2492153797488978 ~1984
2492311249231118 ~1983
2492317149539038 ~1982
2492417149545038 ~1982
24924171395753539
24924173938018879
24924471196374579 ~1984
249245949849197 ~1981
2492657348971998 ~1983
Exp. Prime Factor Digits Year
2492783797690578 ~1984
2492827249282718 ~1983
2492827598278498
24928511445853599 ~1985
2493041149582478 ~1982
249308349861677 ~1981
2493089199447138 ~1982
2493107199448578 ~1982
2493259448786638 ~1983
2493331398932978 ~1983
249338349867677 ~1981
249344349868877 ~1981
249347949869597 ~1981
2493479448826238
249356349871277 ~1981
2493653349111438 ~1983
2493653748095918
249371949874397 ~1981
249392349878477 ~1981
249398349879677 ~1981
2494061947743198 ~1984
2494081149644878 ~1982
2494213748263918 ~1984
2494273598625538 ~1984
2494321149659278 ~1982
Exp. Prime Factor Digits Year
249437949887597 ~1981
24944239379030499 ~1987
2494447249444718 ~1983
249446349889277 ~1981
2494469199557538 ~1982
2494571199565698 ~1982
2494571798262738
2494781199582498 ~1982
249488349897677 ~1981
249493149898637 ~1981
2494981748494318 ~1984
2495071249507118 ~1983
249545949909197 ~1981
2495567199645378 ~1982
2495767598984098 ~1984
249577149915437 ~1981
2495861149751678 ~1982
2495981149758878 ~1982
2496257349475998 ~1983
2496401948632398 ~1984
249650349930077 ~1981
2496541149792478 ~1982
2496553149793198 ~1982
2496553549241678
2496691249669118 ~1983
Exp. Prime Factor Digits Year
249677949935597 ~1981
24968693595491379 ~1986
249691149938237 ~1981
2497097948896878 ~1984
2497211199776898 ~1982
2497217149833038 ~1982
2497333749199918 ~1984
2497349349628878 ~1983
2497357149841438 ~1982
2497381149842878 ~1982
2497423249742318 ~1983
2497457199796578 ~1982
24974771198788979 ~1984
2497633149857998 ~1982
2497633749289918
249773949954797 ~1981
249775149955037 ~1981
249793149958637 ~1981
2497939449629038 ~1983
249799149959837 ~1981
249812349962477 ~1981
2498137599552898 ~1984
249818349963677 ~1981
2498213149892798 ~1982
24982194197007939 ~1986
460
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26-07-05