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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
13913219278264398 ~1987
13913891278277838 ~1987
13914233834853998 ~1988
13914371278287438 ~1987
13914503278290078 ~1987
13914683278293678 ~1987
139150071113200579 ~1988
13915211278304238 ~1987
139152111113216899
13915463278309278 ~1987
13916053834963198 ~1988
139164291948300079 ~1989
13916459278329198 ~1987
13916543278330878 ~1987
13917437835046238 ~1988
13917479278349598 ~1987
13917503278350078 ~1987
13917779278355598 ~1987
139179891948518479 ~1989
13918199278363998 ~1987
13918217835093038 ~1988
13918403278368078 ~1987
13918451278369038 ~1987
13918511278370238 ~1987
13918871278377438 ~1987
Exponent Prime Factor Digits Year
13919051278381038 ~1987
13919123278382478 ~1987
13919291278385838 ~1987
13919351278387038 ~1987
13919963278399278 ~1987
13920143278402878 ~1987
13920323278406478 ~1987
13920743278414878 ~1987
13920877835252638 ~1988
13921031278420638 ~1987
13921163278423278 ~1987
13921331278426638 ~1987
13921403278428078 ~1987
139214232227427699 ~1989
13921559278431198 ~1987
13921571278431438 ~1987
13921717835303038 ~1988
13921783114158620710 ~1991
13922159278443198 ~1987
139222994733581679 ~1990
13922663278453278 ~1987
139227438910555539 ~1990
139229391113835139 ~1988
13922963278459278 ~1987
13923023278460478 ~1987
Exponent Prime Factor Digits Year
13923083278461678 ~1987
13923361835401678 ~1988
13923863278477278 ~1987
13923913835434798 ~1988
13924019278480398 ~1987
13924583278491678 ~1987
139252791114022339 ~1988
13925441835526478 ~1988
13925459278509198 ~1987
13925531278510638 ~1987
13925783278515678 ~1987
13926299278525998 ~1987
13926337835580238 ~1988
13926491278529838 ~1987
13927079278541598 ~1987
139271872506893679 ~1989
13927619278552398 ~1987
13928399278567998 ~1987
13928477835708638 ~1988
13928597835715838 ~1988
13928633835717998 ~1988
13928723278574478 ~1987
13928891278577838 ~1987
139290791392907919 ~1988
13930381835822878 ~1988
Exponent Prime Factor Digits Year
139306491114451939 ~1988
13930883278617678 ~1987
13931003278620078 ~1987
13931117835867038 ~1988
13931461835887678 ~1988
13931783278635678 ~1987
13931843278636878 ~1987
13932293835937598 ~1988
13932533835951998 ~1988
13932601835956078 ~1988
13932797835967838 ~1988
13932839278656798 ~1987
13933301835998078 ~1988
13933343278666878 ~1987
13933739278674798 ~1987
13933919278678398 ~1987
13934051278681038 ~1987
13934243278684878 ~1987
13934351278687038 ~1987
13934759278695198 ~1987
13934801836088078 ~1988
139354191114833539 ~1988
13935611278712238 ~1987
13935697836141838 ~1988
139357316967865519 ~1990
1209
GIMPS The Prime Pages FactorDb.com
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25-07-08