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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
12108203242164078 ~1986
121083311210833119 ~1988
12108401726504078 ~1987
121085215812090099 ~1990
121085592179540639 ~1989
12108581726514878 ~1987
121088231937411699 ~1989
121091831937469299 ~1989
12109271242185438 ~1986
12109343242186878 ~1986
12109463242189278 ~1986
12109633726577998 ~1987
12109901726594078 ~1987
12110387968830978 ~1988
12110471242209438 ~1986
12110699242213998 ~1986
12110963242219278 ~1986
12111311242226238 ~1986
12111397726683838 ~1987
12111479242229598 ~1986
12111563242231278 ~1986
12111779242235598 ~1986
12112031242240638 ~1986
121123196056159519 ~1990
121123631211236319 ~1988
Exponent Prime Factor Digits Year
121125311211253119 ~1988
12112957726777438 ~1987
12112979242259598 ~1986
12113303242266078 ~1986
12113351242267038 ~1986
12113483242269678 ~1986
12114317726859038 ~1987
12114601726876078 ~1987
12114731242294638 ~1986
12114833726889998 ~1987
12114917726895038 ~1987
12114923242298478 ~1986
12115139242302798 ~1986
12115157969212578 ~1988
121154711211547119 ~1988
12116453726987198 ~1987
12116521726991278 ~1987
12116831242336638 ~1986
12117491242349838 ~1986
12117659184188416910 ~1991
12117779242355598 ~1986
121179672181234079 ~1989
121180877028490479 ~1990
12118391242367838 ~1986
12118391969471298
Exponent Prime Factor Digits Year
12118633727117998 ~1987
12118643242372878 ~1986
121187933878013779 ~1989
12118811242376238 ~1986
121189332666165279 ~1989
12119039242380798 ~1986
12119197727151838 ~1987
12119221727153278 ~1987
121193091696703279 ~1988
12119417727165038 ~1987
121196213878278739 ~1989
12119711969576898 ~1988
12119747969579778 ~1988
12119893727193598 ~1987
12119953727197198 ~1987
121200713151218479 ~1989
121200771696810799 ~1988
121203431212034319 ~1988
12120401727224078 ~1987
12120599242411998 ~1986
12120611242412238 ~1986
121206117999603279
12121079242421598 ~1986
12121121727267278 ~1987
121214513151577279 ~1989
Exponent Prime Factor Digits Year
12121619242432398 ~1986
121216613636498319 ~1989
12121871242437438 ~1986
12122093727325598 ~1987
121222632909343139 ~1989
12122597727355838 ~1987
12122651242453038 ~1986
12122723242454478 ~1986
12123101727386078 ~1987
12123253727395198 ~1987
121237631212376319 ~1988
12124537727472238 ~1987
12124661727479678 ~1987
12125137727508238 ~1987
12125273727516398 ~1987
121254672182584079 ~1989
12125891242517838 ~1986
12125977727558638 ~1987
121265091697711279 ~1988
12126557970124578 ~1988
12126671242533438 ~1986
12126677970134178 ~1988
12126743242534878 ~1986
12127061727623678 ~1987
12127243303181075110 ~1991
1175
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26-02-08