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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
42617651852353038 ~1991
42618743852374878 ~1991
42621671852433438 ~1991
42622259852445198 ~1991
42623291852465838 ~1991
42624143852482878 ~1991
42624671852493438 ~1991
42624971852499438 ~1991
42626411852528238 ~1991
426274332557645999 ~1992
42627971852559438 ~1991
426293412557760479 ~1992
42631499852629998 ~1991
426317095968439279 ~1993
42632483852649678 ~1991
426331332557987999 ~1992
426334197674015439 ~1993
42633443852668878 ~1991
42634213127902639110 ~1993
42634463852689278 ~1991
42634919852698398 ~1991
42635171852703438 ~1991
426362332558173999 ~1992
42636791852735838 ~1991
42638663852773278 ~1991
Exponent Prime Factor Digits Year
42638723852774478 ~1991
42638759852775198 ~1991
426393473411147779 ~1992
426393914263939119 ~1992
426401412558408479 ~1992
42640679102337629710 ~1993
42640859852817198 ~1991
42641327110867450310 ~1993
426438011698...3147511284e4 2009
426441532558649199 ~1992
42644579852891598 ~1991
426447132558682799 ~1992
426448812558692879 ~1992
42645563852911278 ~1991
42646031852920638 ~1991
426460332558761999 ~1992
426463612558781679 ~1992
42646823852936478 ~1991
426500572559003439 ~1992
426505816824092979 ~1993
42650963853019278 ~1991
426511874265118719 ~1992
42652391853047838 ~1991
42655391853107838 ~1991
42656039853120798 ~1991
Exponent Prime Factor Digits Year
426561773412494179 ~1992
42656291853125838 ~1991
426563572559381439 ~1992
426586212559517279 ~1992
42660911853218238 ~1991
42661207102386896910 ~1993
42661691853233838 ~1991
426616913412935299
42663851853277038 ~1991
42663899853277998 ~1991
42663983853279678 ~1991
426653212559919279 ~1992
426653332559919999 ~1992
426659476826551539 ~1993
426664932559989599 ~1992
426669012560014079 ~1992
42667991853359838 ~1991
42668123853362478 ~1991
42668891853377838 ~1991
42669551853391038 ~1991
42673283853465678 ~1991
42673511853470238 ~1991
426771713414173699 ~1992
42678071853561438 ~1991
42678323853566478 ~1991
Exponent Prime Factor Digits Year
42679739853594798 ~1991
42680471853609438 ~1991
42680903853618078 ~1991
426811613414492899 ~1992
42681623853632478 ~1991
426832932560997599 ~1992
42683639853672798 ~1991
42685333128055999110 ~1993
426865913414927299 ~1992
42687083853741678 ~1991
42687479853749598 ~1991
426877099391295999 ~1993
426880212561281279 ~1992
42688199853763998 ~1991
42688463853769278 ~1991
42689051853781038 ~1991
426899873415198979 ~1992
42690971853819438 ~1991
426918773415350179 ~1992
426934913415479299 ~1992
426942139392726879 ~1993
42698459853969198 ~1991
42699071853981438 ~1991
42699851853997038 ~1991
42700631854012638 ~1991
1987
GIMPS The Prime Pages FactorDb.com
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25-06-29