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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
642058139128411627910 ~2000
642063959128412791910 ~2000
6420752511155735451911 ~2002
642076943128415388710 ~2000
642079979128415995910 ~2000
642081131128416226310 ~2000
642093983128418796710 ~2000
642099539128419907910 ~2000
6421031931541047663311 ~2002
642103817385262290310 ~2001
642105911128421182310 ~2000
642186617385311970310 ~2001
642187691128437538310 ~2000
642204863128440972710 ~2000
642206723128441344710 ~2000
642216187642216187110 ~2001
642225071128445014310 ~2000
642233783128446756710 ~2000
642240917385344550310 ~2001
642253427513802741710 ~2001
642270203128454040710 ~2000
642278237385366942310 ~2001
642337271128467454310 ~2000
642362099513889679310 ~2001
642364757385418854310 ~2001
Exponent Prime Factor Digits Year
6423787217580068907911 ~2004
642408191128481638310 ~2000
642411239128482247910 ~2000
642422351513937880910 ~2001
642426899128485379910 ~2000
642463859128492771910 ~2000
642464759128492951910 ~2000
642473603128494720710 ~2000
642480119128496023910 ~2000
642482531128496506310 ~2000
642541379128508275910 ~2000
642585539128517107910 ~2000
642591071514072856910 ~2001
642593543128518708710 ~2000
642633647514106917710 ~2001
642665873385599523910 ~2001
6426659112570663644111 ~2003
642666509514133207310 ~2001
642670751128534150310 ~2000
6426887711156839787911 ~2002
642691337514153069710 ~2001
642697703128539540710 ~2000
642708359128541671910 ~2000
642717479514173983310 ~2001
642734503642734503110 ~2001
Exponent Prime Factor Digits Year
642754949514203959310 ~2001
6427835771028453723311 ~2002
642816437514253149710 ~2001
642817403128563480710 ~2000
6428351032057072329711 ~2003
642870323128574064710 ~2000
642894353900052094310 ~2002
642904991128580998310 ~2000
642906371128581274310 ~2000
642921313385752787910 ~2001
642937199128587439910 ~2000
6429671091543121061711 ~2002
642974543128594908710 ~2000
64298265130348781127312 ~2006
642995503642995503110 ~2001
643002599128600519910 ~2000
643010279514408223310 ~2001
643021331128604266310 ~2000
643024757514419805710 ~2001
6430293291929087987111 ~2003
643040771128608154310 ~2000
643055921385833552710 ~2001
643067471128613494310 ~2000
643086539128617307910 ~2000
643093523128618704710 ~2000
Exponent Prime Factor Digits Year
643112999128622599910 ~2000
643148039128629607910 ~2000
643186931128637386310 ~2000
643195979128639195910 ~2000
643201151128640230310 ~2000
643215149514572119310 ~2001
643223897514579117710 ~2001
643229351128645870310 ~2000
643234051643234051110 ~2001
643235893385941535910 ~2001
6432417011415131742311 ~2002
6432548271672462550311 ~2003
6432612771929783831111 ~2003
643268597385961158310 ~2001
643268621385961172710 ~2001
643294193385976515910 ~2001
643303799128660759910 ~2000
643317743128663548710 ~2000
643345181386007108710 ~2001
6433487471029357995311 ~2002
643409147514727317710 ~2001
643414391128682878310 ~2000
643459559128691911910 ~2000
643460819128692163910 ~2000
643489139128697827910 ~2000
3277
GIMPS The Prime Pages FactorDb.com
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25-04-13