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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
19844671271984467127111 ~2005
1984472519396894503910 ~2004
1984497059396899411910 ~2004
1984505459396901091910 ~2004
1984511423396902284710 ~2004
19846206071984620607111 ~2005
1984631651396926330310 ~2004
19846471213175435393711 ~2006
19846943511587755480911 ~2005
1984709159396941831910 ~2004
1984775459396955091910 ~2004
1984820171396964034310 ~2004
198496690928186530107912 ~2008
1985241539397048307910 ~2004
1985369759397073951910 ~2004
1985380763397076152710 ~2004
19853987771191239266311 ~2005
1985428583397085716710 ~2004
198543866912309719747912 ~2007
1985459783397091956710 ~2004
1985490779397098155910 ~2004
1985606099397121219910 ~2004
1985609471397121894310 ~2004
1985616791397123358310 ~2004
1985644679397128935910 ~2004
Exponent Prime Factor Digits Year
1985645111397129022310 ~2004
19857342591588587407311 ~2005
19860701092780498152711 ~2006
1986137291397227458310 ~2004
1986151691397230338310 ~2004
1986201611397240322310 ~2004
198623945979846826251912 ~2009
19864385991589150879311 ~2005
19864726811191883608711 ~2005
1986524003397304800710 ~2004
1986712631397342526310 ~2004
1986788123397357624710 ~2004
1986842843397368568710 ~2004
19868758371192125502311 ~2005
19869001971589520157711 ~2005
1986948563397389712710 ~2004
1986966599397393319910 ~2004
19871157771589692621711 ~2005
1987169399397433879910 ~2004
19872410897948964356111 ~2007
19873803471589904277711 ~2005
1987506743397501348710 ~2004
1987585343397517068710 ~2004
1987607483397521496710 ~2004
19876458731192587523911 ~2005
Exponent Prime Factor Digits Year
1987652483397530496710 ~2004
1987715111397543022310 ~2004
19877559671987755967111 ~2005
1987826471397565294310 ~2004
19878998411192739904711 ~2005
1987912571397582514310 ~2004
1987935431397587086310 ~2004
198800747914711255344712 ~2007
19881064371590485149711 ~2005
1988119019397623803910 ~2004
1988208011397641602310 ~2004
1988288903397657780710 ~2004
1988330951397666190310 ~2004
19883649772783710967911 ~2006
1988375351397675070310 ~2004
19883861171193031670311 ~2005
19883887813181422049711 ~2006
1988507723397701544710 ~2004
1988563331397712666310 ~2004
1988597111397719422310 ~2004
19886261811193175708711 ~2005
19886740971590939277711 ~2005
19887364191590989135311 ~2005
19887456673181993067311 ~2006
19887797811591023824911 ~2005
Exponent Prime Factor Digits Year
1988950739397790147910 ~2004
1989024071397804814310 ~2004
1989024731397804946310 ~2004
1989189623397837924710 ~2004
19891903913580542703911 ~2006
1989225599397845119910 ~2004
1989236603397847320710 ~2004
1989248711397849742310 ~2004
1989276623397855324710 ~2004
1989401483397880296710 ~2004
1989439079397887815910 ~2004
1989685079397937015910 ~2004
1989693071397938614310 ~2004
19896966011193817960711 ~2005
19897666371193859982311 ~2005
1989777659397955531910 ~2004
19897828972785696055911 ~2006
19898043532785726094311 ~2006
1989944483397988896710 ~2004
1990013243398002648710 ~2004
19900172231990017223111 ~2005
19900290731194017443911 ~2005
19900631931194037915911 ~2005
1990110959398022191910 ~2004
1990213031398042606310 ~2004
3790
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25-06-01