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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
1973705399394741079910 ~2004
19737556732763257942311 ~2006
19738088477895235388111 ~2007
1973832383394766476710 ~2004
1973973971394794794310 ~2004
1973988431394797686310 ~2004
19740054131184403247911 ~2005
197403823916187113559912 ~2008
1974150011394830002310 ~2004
19741555315132804380711 ~2006
1974188063394837612710 ~2004
1974226151394845230310 ~2004
1974274559394854911910 ~2004
1974319559394863911910 ~2004
1974429923394885984710 ~2004
19745139291579611143311 ~2005
1974568223394913644710 ~2004
1974593039394918607910 ~2004
1974630863394926172710 ~2004
19746548171184792890311 ~2005
19746553011184793180711 ~2005
1974670583394934116710 ~2004
19748410671579872853711 ~2005
1974875459394975091910 ~2004
19749936171184996170311 ~2005
Exponent Prime Factor Digits Year
1975001291395000258310 ~2004
19750723811185043428711 ~2005
19751031619085474540711 ~2007
19752238391975223839111 ~2005
1975358831395071766310 ~2004
19753861371185231682311 ~2005
1975469939395093987910 ~2004
19754703611185282216711 ~2005
1975557659395111531910 ~2004
1975616543395123308710 ~2004
1975627631395125526310 ~2004
1975667783395133556710 ~2004
1975745543395149108710 ~2004
1975961063395192212710 ~2004
1975999463395199892710 ~2004
1976078339395215667910 ~2004
1976145491395229098310 ~2004
19762374011185742440711 ~2005
1976255579395251115910 ~2004
1976295371395259074310 ~2004
1976322251395264450310 ~2004
1976419811395283962310 ~2004
19764861111581188888911 ~2005
19765001717906000684111 ~2007
19765194531185911671911 ~2005
Exponent Prime Factor Digits Year
19765228372767131971911 ~2006
19765236171185914170311 ~2005
1976704811395340962310 ~2004
1976744723395348944710 ~2004
1976780831395356166310 ~2004
1976838683395367736710 ~2004
19769755372767765751911 ~2006
19770611332767885586311 ~2006
197734370315818749624112 ~2008
1977393371395478674310 ~2004
1977408791395481758310 ~2004
19774214171186452850311 ~2005
1977458579395491715910 ~2004
1977609743395521948710 ~2004
1977611591395522318310 ~2004
1977641651395528330310 ~2004
1977714671395542934310 ~2004
1977750839395550167910 ~2004
19778750273560175048711 ~2006
19780134171582410733711 ~2005
1978184111395636822310 ~2004
197826298112265230482312 ~2007
1978383131395676626310 ~2004
1978439843395687968710 ~2004
1978489319395697863910 ~2004
Exponent Prime Factor Digits Year
1978546331395709266310 ~2004
1978554563395710912710 ~2004
19785755171187145310311 ~2005
1978594679395718935910 ~2004
19786284591582902767311 ~2005
1978664339395732867910 ~2004
1978772291395754458310 ~2004
197887733952242361749712 ~2009
19788922631978892263111 ~2005
19789068713562032367911 ~2006
19789971791978997179111 ~2005
19790386931187423215911 ~2005
1979127323395825464710 ~2004
1979191139395838227910 ~2004
1979196419395839283910 ~2004
1979222579395844515910 ~2004
1979330219395866043910 ~2004
1979378543395875708710 ~2004
1979413823395882764710 ~2004
1979541059395908211910 ~2004
1979827631395965526310 ~2004
1979831459395966291910 ~2004
19799573871583965909711 ~2005
19800452834752108679311 ~2006
1980049271396009854310 ~2004
3836
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25-07-08