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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.
Exponent Prime Factor Digits Year
1263447168822490431312 ~1997
126347817833564239 ~1990
12635033758101998 ~1988
12635159252703198 ~1986
12635221758113278 ~1988
12635377758122638 ~1988
126356695476298944711 ~1995
126368532780107679 ~1989
12636983252739678 ~1986
12637201758232078 ~1988
12637763252755278 ~1986
12637811252756238 ~1986
126379511263795119 ~1988
12637991252759838 ~1986
126380271011042179 ~1988
126385433286021199 ~1989
12638741758324478 ~1988
12638761758325678 ~1988
12638903252778078 ~1986
126392293033414979 ~1989
12639359252787198 ~1986
126398391011187139 ~1988
126398811011190499 ~1988
12639923252798478 ~1986
12640499252809998 ~1986
Exponent Prime Factor Digits Year
126406011011248099 ~1988
12640703252814078 ~1986
12640763252815278 ~1986
12641017758461038 ~1988
12641177758470638 ~1988
12641801758508078 ~1988
12642299252845998 ~1986
12642491252849838 ~1986
126430219102975139 ~1990
12643283252865678 ~1986
12643511252870238 ~1986
12643613758616798 ~1988
12643643252872878 ~1986
12643837758630238 ~1988
12644459252889198 ~1986
126452871011622979 ~1988
12645359252907198 ~1986
12645371252907438 ~1986
12645623252912478 ~1986
12645911252918238 ~1986
126459791264597919 ~1988
126464111264641119 ~1988
12646583252931678 ~1986
12647279252945598 ~1986
12647399252947998 ~1986
Exponent Prime Factor Digits Year
12647617758857038 ~1988
12647819252956398 ~1986
126481733035561539 ~1989
12648659252973198 ~1986
12648719252974398 ~1986
126487193035692579
12648983252979678 ~1986
126491991011935939 ~1988
12649223252984478 ~1986
12649583252991678 ~1986
126495891011967139 ~1988
12649823252996478 ~1986
12650639253012798 ~1986
12651053759063198 ~1988
12651161759069678 ~1988
12651251253025038 ~1986
12651581759094878 ~1988
12651659253033198 ~1986
126517673289459439 ~1989
12652331253046638 ~1986
12652397759143838 ~1988
126528591012228739 ~1988
12653111253062238 ~1986
12653603253072078 ~1986
12653723222705524910 ~1991
Exponent Prime Factor Digits Year
12654371253087438 ~1986
12654539253090798 ~1986
12654563253091278 ~1986
12654721759283278 ~1988
12654923253098478 ~1986
126550031265500319 ~1988
12656051253121038 ~1986
12656243253124878 ~1986
126565912278186399 ~1989
126566392278195039 ~1989
12657353759441198 ~1988
12657611253152238 ~1986
12657739364542883310 ~1992
12657791253155838 ~1986
12657803253156078 ~1986
12657863253157278 ~1986
12658631253172638 ~1986
12658861759531678 ~1988
12659219253184398 ~1986
12659723253194478 ~1986
12659771253195438 ~1986
12659963253199278 ~1986
12660721759643278 ~1988
12661021759661278 ~1988
126616992279105839 ~1989
1136
GIMPS The Prime Pages FactorDb.com
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25-04-13