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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
21409691428193838 ~1988
21410003428200078 ~1988
21410183428203678 ~1988
214102811284616879 ~1989
21410423428208478 ~1988
214104892997468479 ~1990
21410579428211598 ~1988
214106571284639439 ~1989
21410699428213998 ~1988
21410951428219038 ~1988
214110171284661039 ~1989
214112411284674479 ~1989
214113371284680239 ~1989
21411563428231278 ~1988
21411623428232478 ~1988
214119411712955299 ~1990
21413303428266078 ~1988
214134711713077699 ~1990
21413891428277838 ~1988
214148571284891439 ~1989
21415319428306398 ~1988
21416051428321038 ~1988
214161771284970639 ~1989
214165972998323599 ~1990
214168671713349379 ~1990
Exponent Prime Factor Digits Year
21417023428340478 ~1988
21417131428342638 ~1988
21417299428345998 ~1988
21417323428346478 ~1988
21417491428349838 ~1988
21417971428359438 ~1988
21418703428374078 ~1988
21419291428385838 ~1988
21419459428389198 ~1988
214195573427129139 ~1990
21419591428391838 ~1988
214195911713567299
21419939428398798 ~1988
21420131428402638 ~1988
21420551428411038 ~1988
21420683428413678 ~1988
21420863428417278 ~1988
21421091428421838 ~1988
214211635569502399 ~1991
21421703428434078 ~1988
214217275141214499 ~1991
21422231428444638 ~1988
21422783428455678 ~1988
21422939428458798 ~1988
214237814713231839 ~1991
Exponent Prime Factor Digits Year
21424223428484478 ~1988
214248531285491199 ~1989
21425003428500078 ~1988
214254318570172419 ~1991
214258011285548079 ~1989
21426059428521198 ~1988
21426683428533678 ~1988
214267033428272499 ~1990
21427187141419434310 ~1992
21427583428551678 ~1988
21427859428557198 ~1988
21427883428557678 ~1988
214280218142647999 ~1991
21428339428566798 ~1988
21428591428571838 ~1988
214290411714323299 ~1990
21429899428597998 ~1988
214303011285818079 ~1989
21430379428607598 ~1988
21430991428619838 ~1988
214311496429344719 ~1991
214315331285891999 ~1989
21432263428645278 ~1988
21432539428650798 ~1988
214333611286001679 ~1989
Exponent Prime Factor Digits Year
21433883428677678 ~1988
21435143428702878 ~1988
21435257634483607310 ~1994
214356771286140639 ~1989
21435731428714638 ~1988
21435983428719678 ~1988
214363395144721379 ~1991
214371613429945779 ~1990
21437183428743678 ~1988
21437231428744638 ~1988
21437723428754478 ~1988
21437891428757838 ~1988
214382571715060579 ~1990
21438611428772238 ~1988
21438779428775598 ~1988
214387872143878719 ~1990
214388691715109539 ~1990
21439079428781598 ~1988
21439199428783998 ~1988
21439823428796478 ~1988
214399191715193539 ~1990
214405375145728899 ~1991
21440579428811598 ~1988
21440843428816878 ~1988
21440999428819998 ~1988
1461
GIMPS The Prime Pages FactorDb.com
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25-04-13