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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
261805731570834399 ~1990
261806812094454499 ~1990
26181671523633438 ~1989
261818472618184719 ~1991
26182319523646398 ~1989
261828131570968799 ~1990
26182991523659838 ~1989
26183123523662478 ~1989
26183819523676398 ~1989
261847492094779939 ~1990
261849971571099839 ~1990
261856196284548579 ~1992
26185931523718638 ~1989
261859612094876899 ~1990
26186423523728478 ~1989
261866514713597199 ~1991
26187383523747678 ~1989
26187851523757038 ~1989
26188031523760638 ~1989
261884931571309599 ~1990
26189123523782478 ~1989
26189183523783678 ~1989
26189759523795198 ~1989
26190023523800478 ~1989
26190539523810798 ~1989
Exponent Prime Factor Digits Year
26190623523812478 ~1989
26191391523827838 ~1989
261915314190644979 ~1991
26192339523846798 ~1989
26192531523850638 ~1989
26192711523854238 ~1989
261930196286324579 ~1992
26193059523861198 ~1989
26193263523865278 ~1989
26194319523886398 ~1989
26194379523887598 ~1989
26194403523888078 ~1989
26194823523896478 ~1989
26195051523901038 ~1989
26195231523904638 ~1989
26196143523922878 ~1989
26197043523940878 ~1989
26197631523952638 ~1989
261976316811384079
261985731571914399 ~1990
26198591523971838 ~1989
26198723523974478 ~1989
26199443523988878 ~1989
26199791523995838 ~1989
26200019524000398 ~1989
Exponent Prime Factor Digits Year
26200931524018638 ~1989
26201099524021998 ~1989
26201183524023678 ~1989
26201303524026078 ~1989
26202119524042398 ~1989
262024196288580579 ~1992
26202503524050078 ~1989
262030634192490099 ~1991
26203379524067598 ~1989
262037895764833599 ~1991
26203811524076238 ~1989
26204159524083198 ~1989
26204219524084398 ~1989
262045934192734899 ~1991
26204663524093278 ~1989
26204947251567491310 ~1993
26205863524117278 ~1989
26206151524123038 ~1989
262062472096499779 ~1990
26207243524144878 ~1989
262077474717394479 ~1991
26208179524163598 ~1989
26208251524165038 ~1989
26208599524171998 ~1989
26208719524174398 ~1989
Exponent Prime Factor Digits Year
26209439524188798 ~1989
26209643524192878 ~1989
26209679524193598 ~1989
26209871524197438 ~1989
26211023524220478 ~1989
262115472621154719 ~1991
26211551524231038 ~1989
262121177863635119 ~1992
26212619524252398 ~1989
26213339524266798 ~1989
262133812097070499 ~1990
26213459524269198 ~1989
26213471524269438 ~1989
262138612097108899 ~1990
26214011524280238 ~1989
26214239524284798 ~1989
262147874718661679 ~1991
26215643524312878 ~1989
26215823524316478 ~1989
26216051524321038 ~1989
26216231524324638 ~1989
26216279524325598 ~1989
26216639524332798 ~1989
26216759524335198 ~1989
26217239524344798 ~1989
1610
GIMPS The Prime Pages FactorDb.com
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25-04-13