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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
12269489981559138 ~1988
12269501736170078 ~1988
12269759245395198 ~1986
12269891245397838 ~1986
12270173736210398 ~1988
12270689981655138 ~1988
12270757736245438 ~1988
12270913736254798 ~1988
12271019245420398 ~1986
12271333736279998 ~1988
12271403245428078 ~1986
12271643245432878 ~1986
12271801736308078 ~1988
122718371963493939 ~1989
12271859245437198 ~1986
12272159245443198 ~1986
12272303245446078 ~1986
12272321981785698 ~1988
12272483245449678 ~1986
12272783245455678 ~1986
12272893736373598 ~1988
12273013736380798 ~1988
12273059981844738 ~1988
12273143245462878 ~1986
12273323245466478 ~1986
Exponent Prime Factor Digits Year
12274043245480878 ~1986
122743031227430319 ~1988
12274319245486398 ~1986
12274553736473198 ~1988
12274657736479438 ~1988
12274763245495278 ~1986
12275233736513998 ~1988
12275297736517838 ~1988
12276001736560078 ~1988
12276059245521198 ~1986
12276083245521678 ~1986
12276161736569678 ~1988
12276197736571838 ~1988
122763171718684399 ~1988
12276497982119778 ~1988
12276683245533678 ~1986
12276851245537038 ~1986
12277037736622238 ~1988
122771691718803679 ~1988
12277571245551438 ~1986
12277633736657998 ~1988
12278153736689198 ~1988
12278257736695438 ~1988
122785432946850339 ~1989
12278663245573278 ~1986
Exponent Prime Factor Digits Year
122787674174780799 ~1989
12278963245579278 ~1986
122792992210273839 ~1989
12279341736760478 ~1988
12279461736767678 ~1988
12279497736769838 ~1988
12279551245591038 ~1986
12279901736794078 ~1988
12279959245599198 ~1986
12280141736808478 ~1988
12280193736811598 ~1988
12280529982442338 ~1988
12280733736843998 ~1988
122809515894856499 ~1990
12280979245619598 ~1986
12281303245626078 ~1986
12281519245630398 ~1986
12281603245632078 ~1986
12282191245643838 ~1986
12282353736941198 ~1988
12282983245659678 ~1986
12284201737052078 ~1988
12284879245697598 ~1986
12284977737098638 ~1988
12285011245700238 ~1986
Exponent Prime Factor Digits Year
12285263245705278 ~1986
12285359245707198 ~1986
122853792211368239 ~1989
12285451117940329710 ~1990
12285671245713438 ~1986
12285797737147838 ~1988
12285899982871938 ~1988
12286139245722798 ~1986
122861477125965279 ~1990
12286601982928098 ~1988
12286811245736238 ~1986
12286919245738398 ~1986
12286931245738638 ~1986
12287321737239278 ~1988
122873333686199919 ~1989
12287711245754238 ~1986
12287771245755438 ~1986
12287777737266638 ~1988
12287993737279598 ~1988
12288071245761438 ~1986
122880975652524639 ~1990
12288119245762398 ~1986
12288443245768878 ~1986
12289247983139778 ~1988
122894933686847919 ~1989
1188
GIMPS The Prime Pages FactorDb.com
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26-03-08