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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
199438516768606849744912 ~2009
1994483831398896766310 ~2004
1994550359398910071910 ~2004
1994635943398927188710 ~2004
19947179695984153907111 ~2007
199490783310772502298312 ~2007
19949103172792874443911 ~2006
1994941859398988371910 ~2004
19949982891595998631311 ~2005
1995028991399005798310 ~2004
1995084023399016804710 ~2004
19951238035187321887911 ~2006
1995171539399034307910 ~2004
1995252851399050570310 ~2004
199532137912770056825712 ~2007
19953522531197211351911 ~2005
19954428371197265702311 ~2005
1995458579399091715910 ~2004
1995522719399104543910 ~2004
1995537359399107471910 ~2004
1995548759399109751910 ~2004
1995601931399120386310 ~2004
1995631031399126206310 ~2004
1995633779399126755910 ~2004
1995640799399128159910 ~2004
Exponent Prime Factor Digits Year
19956985671596558853711 ~2005
19958438511596675080911 ~2005
19958563191596685055311 ~2005
1995902879399180575910 ~2004
19959199972794287995911 ~2006
1995970703399194140710 ~2004
19961565791996156579111 ~2005
1996196099399239219910 ~2004
199623987742719533367912 ~2009
1996276571399255314310 ~2004
19962868994791088557711 ~2006
1996303139399260627910 ~2004
1996312523399262504710 ~2004
1996349843399269968710 ~2004
1996388903399277780710 ~2004
199651495314374907661712 ~2007
1996516211399303242310 ~2004
19965769871996576987111 ~2005
1996637099399327419910 ~2004
1996670699399334139910 ~2004
19966846073594032292711 ~2006
19967225271597378021711 ~2005
1996729079399345815910 ~2004
1996778363399355672710 ~2004
1996875371399375074310 ~2004
Exponent Prime Factor Digits Year
19969221771597537741711 ~2005
1996934111399386822310 ~2004
1996969703399393940710 ~2004
1996970483399394096710 ~2004
19969759011198185540711 ~2005
19970247071997024707111 ~2005
1997059331399411866310 ~2004
1997153003399430600710 ~2004
1997169803399433960710 ~2004
1997203451399440690310 ~2004
1997223479399444695910 ~2004
1997230919399446183910 ~2004
19972830111597826408911 ~2005
1997379599399475919910 ~2004
1997392343399478468710 ~2004
19974230811198453848711 ~2005
1997429519399485903910 ~2004
1997526131399505226310 ~2004
19975360191598028815311 ~2005
19975767411198546044711 ~2005
1997659463399531892710 ~2004
1997752643399550528710 ~2004
19977742211198664532711 ~2005
19978674371198720462311 ~2005
1997872463399574492710 ~2004
Exponent Prime Factor Digits Year
19979101131198746067911 ~2005
1997947043399589408710 ~2004
1997965223399593044710 ~2004
19980438771198826326311 ~2005
1998142271399628454310 ~2004
1998145223399629044710 ~2004
1998265259399653051910 ~2004
19982863971598629117711 ~2005
19983446531199006791911 ~2005
1998357983399671596710 ~2004
19984324971598745997711 ~2005
1998448799399689759910 ~2004
1998461123399692224710 ~2004
19984932611199095956711 ~2005
1998523979399704795910 ~2004
1998525059399705011910 ~2004
1998596123399719224710 ~2004
19986441771598915341711 ~2005
1998757919399751583910 ~2004
19988159391599052751311 ~2005
19988517134397473768711 ~2006
19988817371199329042311 ~2005
1998894011399778802310 ~2004
19989247496396559196911 ~2007
19990195491599215639311 ~2005
4096
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26-01-11