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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
203533791628270339 ~1990
20353559407071198 ~1988
20353583407071678 ~1988
20354303407086078 ~1988
203547792035477919 ~1990
20354891407097838 ~1988
20356139407122798 ~1988
20356211407124238 ~1988
203562291628498339 ~1990
20356439407128798 ~1988
20356631407132638 ~1988
20356751407135038 ~1988
203569011221414079 ~1989
203569331221415999 ~1989
20356991407139838 ~1988
20357171407143438 ~1988
20357399407147998 ~1988
20357411407148238 ~1988
20357663407153278 ~1988
20357819407156398 ~1988
20357951407159038 ~1988
20357999407159998 ~1988
20358083407161678 ~1988
203586177736274479 ~1991
20358683407173678 ~1988
Exponent Prime Factor Digits Year
20358983407179678 ~1988
203599931221599599 ~1989
20360603407212078 ~1988
20360699407213998 ~1988
20361443407228878 ~1988
20361479407229598 ~1988
20361791407235838 ~1988
20362571407251438 ~1988
20363099407261998 ~1988
20363279407265598 ~1988
20363351407267038 ~1988
20363663407273278 ~1988
20363963407279278 ~1988
20364251407285038 ~1988
20364479407289598 ~1988
20365139407302798 ~1988
203653131221918799 ~1989
203656011221936079 ~1989
203659571221957439 ~1989
203659791629278339 ~1990
203663511629308099 ~1990
203663931221983599 ~1989
20366543407330878 ~1988
20366579407331598 ~1988
20366639407332798 ~1988
Exponent Prime Factor Digits Year
20366939407338798 ~1988
203670011222020079 ~1989
20367359407347198 ~1988
203674371222046239 ~1989
20367491407349838 ~1988
20368079407361598 ~1988
203681771222090639 ~1989
20368223407364478 ~1988
20368651215907700710 ~1992
203686611222119679 ~1989
20368979407379598 ~1988
20369171407383438 ~1988
20369231407384638 ~1988
20369879407397598 ~1988
203699531222197199 ~1989
20370263407405278 ~1988
203703731222222399 ~1989
20371199407423998 ~1988
20371691407433838 ~1988
20371787211866584910 ~1992
20371931407438638 ~1988
20372063407441278 ~1988
20372483407449678 ~1988
20372591407451838 ~1988
20373323407466478 ~1988
Exponent Prime Factor Digits Year
20374199407483998 ~1988
203742013259872179 ~1990
20375279407505598 ~1988
20375423407508478 ~1988
20375471407509438 ~1988
203759211222555279 ~1989
20375963407519278 ~1988
203761211222567279 ~1989
20376131407522638 ~1988
20376203407524078 ~1988
20376311407526238 ~1988
20377163407543278 ~1988
20377499407549998 ~1988
203780271630242179 ~1990
203782334890775939 ~1991
20378399407567998 ~1988
203785931222715599 ~1989
20378951407579038 ~1988
203797132853159839 ~1990
20380439407608798 ~1988
20380571407611438 ~1988
203806811222840879 ~1989
20381219407624398 ~1988
20382503407650078 ~1988
20382599407651998 ~1988
1431
GIMPS The Prime Pages FactorDb.com
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25-05-04