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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
7728359618268738 ~1986
7728443154568878 ~1985
7728551154571038 ~1985
7728551618284098
7729343154586878 ~1985
7729451154589038 ~1985
77294512009657279
7729763154595278 ~1985
7729919154598398 ~1985
7730111154602238 ~1985
7730279154605598 ~1985
7730339618427138 ~1986
7730341463820478 ~1986
7730417463825038 ~1986
77304311236868979 ~1987
7730531154610638 ~1985
77306512009969279 ~1987
77309636957866719 ~1989
7731433463885998 ~1986
77317074329755939 ~1988
7731721463903278 ~1986
7731761463905678 ~1986
7731881618550498 ~1986
7732321463939278 ~1986
7732457463947438 ~1986
Exp. Prime Factor Digits Year
7732471773247118 ~1986
7732633463957998 ~1986
7733087618646978 ~1986
7733321618665698 ~1986
7733431773343118 ~1986
7733471154669438 ~1985
7733711154674238 ~1985
7733941464036478 ~1986
7733951618716098 ~1986
7733983773398318 ~1986
7734119154682398 ~1985
7734203154684078 ~1985
7734317618745378 ~1986
77346071392229279 ~1987
7734689618775138 ~1986
7734791154695838 ~1985
7734827618786178 ~1986
7734911618792898 ~1986
7734971154699438 ~1985
7735163154703278 ~1985
7735319154706398 ~1985
7735361464121678 ~1986
7735439154708798 ~1985
7735583154711678 ~1985
7735597464135838 ~1986
Exp. Prime Factor Digits Year
7735811154716238 ~1985
7736593464195598 ~1986
77366275106173839 ~1988
7736633464197998 ~1986
7736761464205678 ~1986
7736831154736638 ~1985
7736831618946498
7736873464212398 ~1986
7736951154739038 ~1985
7737071154741438 ~1985
7737263154745278 ~1985
7737677619014178 ~1986
7737967773796718 ~1986
7738271154765438 ~1985
7738337464300238 ~1986
7738337619066978
77384273714444979 ~1988
7738943154778878 ~1985
7739101464346078 ~1986
7739189619135138 ~1986
77392734333992899 ~1988
7739519154790398 ~1985
7739597464375838 ~1986
7739651619172098 ~1986
7739843154796878 ~1985
Exp. Prime Factor Digits Year
77400239288027619 ~1989
7740119154802398 ~1985
7740203154804078 ~1985
77405473096218819 ~1988
7740599154811998 ~1985
7740611154812238 ~1985
7740833464449998 ~1986
7741403154828078 ~1985
7742411154848238 ~1985
7742459154849198 ~1985
7742677464560638 ~1986
7742723154854478 ~1985
7742771154855438 ~1985
7742807619424578 ~1986
7742957619436578 ~1986
77429571084013999
7743209619456738 ~1986
7743389619471138 ~1986
77434094955781779 ~1988
7743503154870078 ~1985
7743559774355918 ~1986
7743611619488898 ~1986
7744151619532098 ~1986
7744391154887838 ~1985
7744403154888078 ~1985
876
GIMPS The Prime Pages FactorDb.com
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25-04-13