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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
12115157969212578 ~1988
121154711211547119 ~1988
12116453726987198 ~1987
12116521726991278 ~1987
12116831242336638 ~1986
12117491242349838 ~1986
12117659184188416910 ~1991
12117779242355598 ~1986
121179672181234079 ~1989
121180877028490479 ~1990
12118391242367838 ~1986
12118391969471298
12118633727117998 ~1987
12118643242372878 ~1986
121187933878013779 ~1989
12118811242376238 ~1986
121189332666165279 ~1989
12119039242380798 ~1986
12119221727153278 ~1987
121193091696703279 ~1988
12119417727165038 ~1987
121196213878278739 ~1989
12119711969576898 ~1988
12119747969579778 ~1988
121200713151218479 ~1989
Exponent Prime Factor Digits Year
121200771696810799 ~1988
121203431212034319 ~1988
12120599242411998 ~1986
12120611242412238 ~1986
121206117999603279
12121079242421598 ~1986
12121121727267278 ~1987
121214513151577279 ~1989
12121619242432398 ~1986
121216613636498319 ~1989
12121871242437438 ~1986
121222632909343139 ~1989
12122651242453038 ~1986
12122723242454478 ~1986
12123101727386078 ~1987
12123253727395198 ~1987
121237631212376319 ~1988
12124661727479678 ~1987
12125137727508238 ~1987
12125273727516398 ~1987
121254672182584079 ~1989
12125891242517838 ~1986
121265091697711279 ~1988
12126557970124578 ~1988
12126671242533438 ~1986
Exponent Prime Factor Digits Year
12126677970134178 ~1988
12126743242534878 ~1986
12127061727623678 ~1987
12127243303181075110 ~1991
12127319242546398 ~1986
12127991242559838 ~1986
12128113727686798 ~1987
12128219242564398 ~1986
12128243242564878 ~1986
12128591242571838 ~1986
12129251242585038 ~1986
12129731242594638 ~1986
12129829145557948110 ~1991
121299371940789939 ~1989
12131267970501378 ~1988
121322175580819839 ~1990
12132311242646238 ~1986
12132487165001823310 ~1991
121333676066683519 ~1990
121336031213360319 ~1988
12133619242672398 ~1986
121337471213374719 ~1988
12133931242678638 ~1986
12134531970762498 ~1988
12135143242702878 ~1986
Exponent Prime Factor Digits Year
12135551242711038 ~1986
12136273728176398 ~1987
12136583242731678 ~1986
12136643242732878 ~1986
12136721728203278 ~1987
12137003242740078 ~1986
12137579242751598 ~1986
12137843242756878 ~1986
12138023242760478 ~1986
12138097728285838 ~1987
12138551242771038 ~1986
12138683242773678 ~1986
12138803242776078 ~1986
12138851242777038 ~1986
12139103242782078 ~1986
121398478012299039 ~1990
12139861728391678 ~1987
121399136798351299 ~1990
12139943242798878 ~1986
12140291242805838 ~1986
12140651242813038 ~1986
12141047971283778 ~1988
12141191242823838 ~1986
121413775827860979 ~1990
12141443242828878 ~1986
1132
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25-07-08