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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
23843063476861278 ~1989
23843159476863198 ~1989
238438813815020979 ~1991
23844179476883598 ~1989
23844263476885278 ~1989
23844851476897038 ~1989
23844911476898238 ~1989
23845259476905198 ~1989
23845331476906638 ~1989
238461531430769199 ~1990
23846219476924398 ~1989
23846243476924878 ~1989
23846363476927278 ~1989
23846831476936638 ~1989
23848421243253894310 ~1993
238490714292832799 ~1991
23849279476985598 ~1989
238494912384949119 ~1990
23849603476992078 ~1989
23849879476997598 ~1989
238504811431028879 ~1990
23850539477010798 ~1989
23850791477015838 ~1989
238510971431065839 ~1990
23851211477024238 ~1989
Exponent Prime Factor Digits Year
23852063477041278 ~1989
238523511908188099 ~1990
23852399477047998 ~1989
23852459477049198 ~1989
23852519477050398 ~1989
23852651477053038 ~1989
23852879477057598 ~1989
23853059477061198 ~1989
23853143477062878 ~1989
23853359477067198 ~1989
23853383477067678 ~1989
238539591908316739 ~1990
238543931431263599 ~1990
23854643477092878 ~1989
23854871477097438 ~1989
23855339477106798 ~1989
238557371431344239 ~1990
23856179477123598 ~1989
238563771431382639 ~1990
23856611477132238 ~1989
238568295725638979 ~1991
23857079477141598 ~1989
23857391477147838 ~1989
23857943477158878 ~1989
23858183477163678 ~1989
Exponent Prime Factor Digits Year
23858903477178078 ~1989
23859323477186478 ~1989
23859371477187438 ~1989
238599291908794339 ~1990
23861219477224398 ~1989
23861423477228478 ~1989
23861471477229438 ~1989
23861483477229678 ~1989
23861639477232798 ~1989
238620893340692479 ~1991
23862131477242638 ~1989
23862383477247678 ~1989
23862599477251998 ~1989
238639794295516239 ~1991
23864339477286798 ~1989
238654371909234979 ~1990
23865899477317998 ~1989
23866211477324238 ~1989
23866343477326878 ~1989
23866379477327598 ~1989
238664771431988639 ~1990
23867891477357838 ~1989
23868011477360238 ~1989
23868023477360478 ~1989
23868563477371278 ~1989
Exponent Prime Factor Digits Year
23869151477383038 ~1989
23869619477392398 ~1989
23869931477398638 ~1989
238699971432199839 ~1990
23870039477400798 ~1989
23870939477418798 ~1989
23871203477424078 ~1989
238715171432291039 ~1990
23872391477447838 ~1989
238724871909798979 ~1990
23873099477461998 ~1989
238734531432407199 ~1990
238741131432446799 ~1990
23874421339016778310 ~1993
23874551477491038 ~1989
23875031477500638 ~1989
23875499477509998 ~1989
23875991477519838 ~1989
23876243477524878 ~1989
23876591477531838 ~1989
23877071477541438 ~1989
23877383477547678 ~1989
23878103477562078 ~1989
23878451477569038 ~1989
238784937163547919 ~1991
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25-04-13