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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
12769103255382078 ~1987
12769307114923763110 ~1991
12769331255386638 ~1987
12769517766171038 ~1988
127697093064730179 ~1989
12769781766186878 ~1988
12769943255398878 ~1987
127701891021615139 ~1988
12770363255407278 ~1987
12770423255408478 ~1987
127705791021646339 ~1988
12770711255414238 ~1987
127707492809564799 ~1989
12771041766262478 ~1988
12771191255423838 ~1987
127714191021713539 ~1988
12771431255428638 ~1987
12771457766287438 ~1988
12771491255429838 ~1987
127714911021719299
12771719255434398 ~1987
12772433766345998 ~1988
12772871255457438 ~1987
127729871277298719 ~1988
12773221766393278 ~1988
Exponent Prime Factor Digits Year
127733591277335919 ~1988
12773459255469198 ~1987
127738611021908899 ~1988
12773879255477598 ~1987
12773951255479038 ~1987
12774299255485998 ~1987
12775463255509278 ~1987
12775943255518878 ~1987
12776111255522238 ~1987
127765791022126339 ~1988
12776723255534478 ~1987
12777203255544078 ~1987
127775211022201699 ~1988
127781091022248739 ~1988
12778319255566398 ~1987
127784536900364639 ~1990
12778477766708638 ~1988
127784811022278499 ~1988
12778691255573838 ~1987
12778993766739598 ~1988
127797071277970719 ~1988
12779831255596638 ~1987
12779939255598798 ~1987
127799535878778399 ~1990
12780197766811838 ~1988
Exponent Prime Factor Digits Year
12780539255610798 ~1987
12780611255612238 ~1987
12780731255614638 ~1987
12780877766852638 ~1988
12781421766885278 ~1988
12781541766892478 ~1988
127815411022523299
12781781766906878 ~1988
12781799255635998 ~1987
12781817766909038 ~1988
12781823255636478 ~1987
12781871255637438 ~1987
127822136902395039 ~1990
12782219255644398 ~1987
12782251398806231310 ~1992
12782873766972398 ~1988
12782879255657598 ~1987
127829931789619039 ~1989
127832175113286819 ~1990
12783383255667678 ~1987
127834973068039299 ~1989
127836471022691779 ~1988
12783817767029038 ~1988
12783839255676798 ~1987
12783973767038398 ~1988
Exponent Prime Factor Digits Year
12784091255681838 ~1987
12784379255687598 ~1987
12784643255692878 ~1987
127851891022815139 ~1988
127855031278550319 ~1988
12785653767139198 ~1988
12785681767140878 ~1988
12785693767141598 ~1988
12785777767146638 ~1988
12785939255718798 ~1987
12786311255726238 ~1987
12786479255729598 ~1987
12787319255746398 ~1987
12787409102299272110 ~1990
12787781767266878 ~1988
12788117767287038 ~1988
12788123255762478 ~1987
127883533836505919 ~1989
12788603255772078 ~1987
12788999255779998 ~1987
12789323255786478 ~1987
12789599255791998 ~1987
12789677767380638 ~1988
12789911255798238 ~1987
12790559255811198 ~1987
1215
GIMPS The Prime Pages FactorDb.com
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26-03-15