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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
21399299427985998 ~1988
21399551427991038 ~1988
21400103428002078 ~1988
21400163428003278 ~1988
21400343428006878 ~1988
21400451428009038 ~1988
21400523428010478 ~1988
21400919428018398 ~1988
214017011284102079 ~1989
21402119428042398 ~1988
21402383428047678 ~1988
214025872106014560911 ~1995
214031113852559999 ~1991
21403199428063998 ~1988
21403439428068798 ~1988
21403559428071198 ~1988
21403643428072878 ~1988
21404063428081278 ~1988
214044131284264799 ~1989
21404843428096878 ~1988
214051211284307279 ~1989
214052531284315199 ~1989
21405383428107678 ~1988
21405491428109838 ~1988
21405803428116078 ~1988
Exponent Prime Factor Digits Year
21406271428125438 ~1988
21406499428129998 ~1988
214065312140653119 ~1990
214071731284430399 ~1989
21407363428147278 ~1988
21407531428150638 ~1988
214076713425227379 ~1990
214076771284460639 ~1989
21407783428155678 ~1988
21407999428159998 ~1988
21408029359654887310 ~1993
21408479428169598 ~1988
21408659428173198 ~1988
21408851428177038 ~1988
21408983428179678 ~1988
214091516850928339 ~1991
21409691428193838 ~1988
21410003428200078 ~1988
21410183428203678 ~1988
214102811284616879 ~1989
21410423428208478 ~1988
214104892997468479 ~1990
21410579428211598 ~1988
214106571284639439 ~1989
21410699428213998 ~1988
Exponent Prime Factor Digits Year
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
21417023428340478 ~1988
21417131428342638 ~1988
21417299428345998 ~1988
21417323428346478 ~1988
21417491428349838 ~1988
21417971428359438 ~1988
21418703428374078 ~1988
21419291428385838 ~1988
21419459428389198 ~1988
Exponent Prime Factor Digits Year
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
21424223428484478 ~1988
214248531285491199 ~1989
21425003428500078 ~1988
214254318570172419 ~1991
214258011285548079 ~1989
21426059428521198 ~1988
21426683428533678 ~1988
214267033428272499 ~1990
21427187141419434310 ~1992
1484
GIMPS The Prime Pages FactorDb.com
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25-07-08