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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
222785944557197 ~1981
222787144557437 ~1981
2228101356496178 ~1983
22281171247745539 ~1984
222818344563677 ~1981
2228183579327598
2228351713072338 ~1983
222842344568477 ~1981
2228573133714398 ~1982
222877144575437 ~1981
2228893490356478 ~1983
2228981133738878 ~1982
2229089713308498 ~1983
2229119178329538 ~1982
222929944585997 ~1981
22293492095588079 ~1985
2229503535080738 ~1983
2229587178366978 ~1982
222959944591997 ~1981
2229697356751538 ~1983
2229767178381378 ~1982
2229769535144578 ~1983
2229779936507198 ~1984
222986344597277 ~1981
2229917178393378 ~1982
Exp. Prime Factor Digits Year
2229943758180638 ~1984
2230097133805838 ~1982
2230133312218638 ~1983
223013944602797 ~1981
2230253535260738 ~1983
2230301133818078 ~1982
2230301847514398
2230411356865778 ~1983
223043944608797 ~1981
2230541178443298 ~1982
2230577133834638 ~1982
2230783356925298 ~1983
2230861133851678 ~1982
22310511249388579 ~1984
223117144623437 ~1981
2231209535490178 ~1983
2231219535492578 ~1983
2231279178502338 ~1982
2231279401630238
22312931026394799 ~1984
2231297133877838 ~1982
2231309535514178 ~1983
2231311223131118 ~1982
2231479223147918 ~1982
2231599401687838 ~1983
Exp. Prime Factor Digits Year
2231653133899198 ~1982
2231681669504318 ~1983
2231707401707278 ~1983
2231711580244878 ~1983
2231849312458878 ~1983
2231881357100978 ~1983
223217944643597 ~1981
2232281178582498 ~1982
2232353535764738 ~1983
2232401178592098 ~1982
2232421133945278 ~1982
2232493357198898 ~1983
223255144651037 ~1981
2232613535827138 ~1983
2232749178619938 ~1982
2232773535865538 ~1983
2232847357255538 ~1983
2232907223290718 ~1982
2232941133976478 ~1982
223295944659197 ~1981
223301944660397 ~1981
2233199937943598 ~1984
2233213491306878 ~1983
223322344664477 ~1981
2233247401984478 ~1983
Exp. Prime Factor Digits Year
2233331178666498 ~1982
2233379178670338 ~1982
2233397848690878 ~1984
2233601134016078 ~1982
223363144672637 ~1981
2233631580744078
22338591072252339 ~1984
22339691742495839 ~1984
2234161134049678 ~1982
22344471474735039 ~1984
2234471178757698 ~1982
2234503223450318 ~1982
2234593357534898 ~1983
2234621715078738 ~1984
2234699178775938 ~1982
2234717178777378 ~1982
22349272547816799 ~1985
2235257178820578 ~1982
22353232727094079 ~1985
2235557134133438 ~1982
2235617134137038 ~1982
2235647178851778 ~1982
2235797536591298 ~1983
2235803581308798 ~1983
2235851402453198 ~1983
411
GIMPS The Prime Pages FactorDb.com
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25-05-04