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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
211721894657881599 ~1991
21172223423444478 ~1988
21172439423448798 ~1988
21172451423449038 ~1988
21172499423449998 ~1988
211726371270358239 ~1989
211730571270383439 ~1989
21173783423475678 ~1988
211743531270461199 ~1989
21175151423503038 ~1988
211756911694055299 ~1990
21175943423518878 ~1988
21176159423523198 ~1988
21176567101647521710 ~1992
21176579423531598 ~1988
21176591423531838 ~1988
21176651423533038 ~1988
21177011423540238 ~1988
21177239423544798 ~1988
21177731423554638 ~1988
21178211423564238 ~1988
21178343423566878 ~1988
211785131270710799 ~1989
21178571423571438 ~1988
21179519423590398 ~1988
Exponent Prime Factor Digits Year
21179579423591598 ~1988
21179591423591838 ~1988
21180431423608638 ~1988
21180683423613678 ~1988
211807071694456579 ~1990
211807518895915439 ~1991
21180889101668267310 ~1992
21181103423622078 ~1988
21181679423633598 ~1988
21182543423650878 ~1988
211828931270973599 ~1989
21183671423673438 ~1988
21183791423675838 ~1988
21183923423678478 ~1988
21184139423682798 ~1988
211841391694731139
21184151423683038 ~1988
211843491694747939 ~1990
21184571423691438 ~1988
21185303423706078 ~1988
21185603423712078 ~1988
21185891423717838 ~1988
21186239423724798 ~1988
21186383423727678 ~1988
21186563423731278 ~1988
Exponent Prime Factor Digits Year
21186983423739678 ~1988
21187319423746398 ~1988
21187511423750238 ~1988
21187619423752398 ~1988
211877816356334319 ~1991
21187823423756478 ~1988
21187871423757438 ~1988
21188003423760078 ~1988
211882131271292799 ~1989
21190259423805198 ~1988
21190919423818398 ~1988
21191123423822478 ~1988
21191459423829198 ~1988
21191543423830878 ~1988
21191591423831838 ~1988
21191603423832078 ~1988
211918132966853839 ~1990
211921131271526799 ~1989
211922873814611679 ~1991
21192371423847438 ~1988
21192443423848878 ~1988
211927131271562799 ~1989
211932235510237999 ~1991
21193391423867838 ~1988
21193583423871678 ~1988
Exponent Prime Factor Digits Year
21193691423873838 ~1988
21194531423890638 ~1988
211946531271679199 ~1989
21195059423901198 ~1988
21195299423905998 ~1988
21196159292506994310 ~1993
21196211423924238 ~1988
21196223423924478 ~1988
21196277118699151310 ~1992
21196403423928078 ~1988
211965411695723299 ~1990
21196691423933838 ~1988
211971171271827039 ~1989
211987571271925439 ~1989
21199751423995038 ~1988
21200303424006078 ~1988
21200579424011598 ~1988
21201419424028398 ~1988
21201611424032238 ~1988
212019192120191919 ~1990
212025411272152479 ~1989
212025411696203299
21202763424055278 ~1988
21203459424069198 ~1988
212035131272210799 ~1989
1405
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24-10-27