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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
20434703408694078 ~1988
20435099147132712910 ~1992
20435939408718798 ~1988
20436359408727198 ~1988
20436551408731038 ~1988
20436623408732478 ~1988
20436659408733198 ~1988
20436863408737278 ~1988
204370971226225839 ~1989
204377171226263039 ~1989
20437979408759598 ~1988
204387792043877919 ~1990
20439179408783598 ~1988
20439719408794398 ~1988
20439911408798238 ~1988
204405074905721699 ~1991
204409211226455279 ~1989
204414371226486239 ~1989
20441699408833998 ~1988
204419472044194719 ~1990
20442011408840238 ~1988
20442479233044260710 ~1992
20442599408851998 ~1988
20442659408853198 ~1988
20443019408860398 ~1988
Exponent Prime Factor Digits Year
20443691408873838 ~1988
204438531226631199 ~1989
204439011226634079 ~1989
204439371635514979 ~1990
204442134906611139 ~1991
20444471408889438 ~1988
20444771408895438 ~1988
20445443408908878 ~1988
20445791408915838 ~1988
20445923408918478 ~1988
20446271408925438 ~1988
20446799408935998 ~1988
20447159408943198 ~1988
20447411408948238 ~1988
204476571226859439 ~1989
20448119408962398 ~1988
20448443408968878 ~1988
20448803408976078 ~1988
204488531226931199 ~1989
20449151408983038 ~1988
20449343408986878 ~1988
20449391408987838 ~1988
204496011226976079 ~1989
20450063409001278 ~1988
20450351409007038 ~1988
Exponent Prime Factor Digits Year
204506931227041599 ~1989
204507411227044479 ~1989
20450819409016398 ~1988
20450939409018798 ~1988
204514371227086239 ~1989
20451443114528080910 ~1992
20451551409031038 ~1988
20451911409038238 ~1988
204519673272314739 ~1990
20452199409043998 ~1988
20452559163620472110 ~1992
20452703409054078 ~1988
20452739409054798 ~1988
20452979409059598 ~1988
20453039409060798 ~1988
20453591409071838 ~1988
204536233272579699 ~1990
20453663409073278 ~1988
204550038182001219 ~1991
204550513272808179 ~1990
20455499409109998 ~1988
20455559409111198 ~1988
204563331227379999 ~1989
204563931227383599 ~1989
20456651409133038 ~1988
Exponent Prime Factor Digits Year
20456963409139278 ~1988
20457023409140478 ~1988
204576771636614179 ~1990
20458103409162078 ~1988
20458283409165678 ~1988
20458643409172878 ~1988
20458703409174078 ~1988
20458723147302805710 ~1992
204589811227538879 ~1989
20459651409193038 ~1988
204602419411710879 ~1991
204605773273692339 ~1990
20460683409213678 ~1988
204609892864538479 ~1990
20461019409220398 ~1988
20461139409222798 ~1988
20461151409223038 ~1988
204613211227679279 ~1989
204616071636928579 ~1990
20462063409241278 ~1988
204629211227775279 ~1989
204641092864975279 ~1990
20464211409284238 ~1988
20464331409286638 ~1988
20464511409290238 ~1988
1428
GIMPS The Prime Pages FactorDb.com
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25-04-13