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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
18087932991447034639311 ~2005
18088100271447048021711 ~2005
18088235211447058816911 ~2005
1808885219361777043910 ~2003
18088992771447119421711 ~2005
1808918183361783636710 ~2003
18089458135788626601711 ~2006
1809054083361810816710 ~2003
18090549531085432971911 ~2004
1809071399361814279910 ~2003
1809220103361844020710 ~2003
1809380519361876103910 ~2003
180945245918818305573712 ~2008
1809490019361898003910 ~2003
18095444331085726659911 ~2004
1809647699361929539910 ~2003
18096512531085790751911 ~2004
18096676211085800572711 ~2004
1809698483361939696710 ~2003
1809855863361971172710 ~2003
1809987743361997548710 ~2003
1810089419362017883910 ~2003
18100950411086057024711 ~2004
18101227492534171848711 ~2005
18101495331086089719911 ~2004
Exponent Prime Factor Digits Year
1810166951362033390310 ~2003
1810229279362045855910 ~2003
18102297771086137866311 ~2004
18102321471448185717711 ~2005
18102332415430699723111 ~2006
1810270751362054150310 ~2003
1810289759362057951910 ~2003
1810321451362064290310 ~2003
18104004611086240276711 ~2004
1810400699362080139910 ~2003
1810428023362085604710 ~2003
1810437659362087531910 ~2003
18104899791448391983311 ~2005
1810577711362115542310 ~2003
18105940215431782063111 ~2006
1810641179362128235910 ~2003
1810662083362132416710 ~2003
1810731491362146298310 ~2003
1810807403362161480710 ~2003
1810813859362162771910 ~2003
1810817303362163460710 ~2003
1810832099362166419910 ~2003
1810838951362167790310 ~2003
1810854803362170960710 ~2003
1810894223362178844710 ~2003
Exponent Prime Factor Digits Year
1810921919362184383910 ~2003
1810953503362190700710 ~2003
1810968899362193779910 ~2003
1810980491362196098310 ~2003
1811207291362241458310 ~2003
1811278823362255764710 ~2003
1811288471362257694310 ~2003
1811313071362262614310 ~2003
18113448891449075911311 ~2005
18113473397607658823911 ~2007
1811352743362270548710 ~2003
1811361179362272235910 ~2003
1811375123362275024710 ~2003
18113944011449115520911 ~2005
1811437451362287490310 ~2003
18114795471449183637711 ~2005
1811508599362301719910 ~2003
1811599379362319875910 ~2003
18116605971449328477711 ~2005
1811714351362342870310 ~2003
1811765603362353120710 ~2003
1811791571362358314310 ~2003
1811822471362364494310 ~2003
1811827943362365588710 ~2003
1811966339362393267910 ~2003
Exponent Prime Factor Digits Year
18120201431812020143111 ~2005
1812040859362408171910 ~2003
18120969739785323654311 ~2007
1812232211362446442310 ~2003
18122333691449786695311 ~2005
18122568471449805477711 ~2005
18122605198698850491311 ~2007
1812280583362456116710 ~2003
18123560712899769713711 ~2006
18123637311449890984911 ~2005
18123724333987219352711 ~2006
1812377579362475515910 ~2003
18123966012899834561711 ~2006
1812418799362483759910 ~2003
1812510803362502160710 ~2003
1812727811362545562310 ~2003
18127462511812746251111 ~2005
1812794339362558867910 ~2003
1812811163362562232710 ~2003
18128718771450297501711 ~2005
1812941243362588248710 ~2003
18130226113263440699911 ~2006
18131850911813185091111 ~2005
1813209971362641994310 ~2003
1813375463362675092710 ~2003
4140
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26-03-15