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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
231997211391983279 ~1990
232008171392049039 ~1990
232009211392055279 ~1990
232009219280368419
232009877888335599 ~1992
232011591856092739 ~1990
232013571392081439 ~1990
232014192320141919 ~1990
23201939464038798 ~1989
23202659464053198 ~1989
23203319464066398 ~1989
23203751464075038 ~1989
23203931464078638 ~1989
23204123464082478 ~1989
23204183464083678 ~1989
23204231464084638 ~1989
232051999282079619 ~1992
23205779464115598 ~1989
23206031464120638 ~1989
232063971856511779 ~1990
23206523464130478 ~1989
23206559464131198 ~1989
232071171392427039 ~1990
23207543464150878 ~1989
232078611392471679 ~1990
Exponent Prime Factor Digits Year
23207963464159278 ~1989
23208131464162638 ~1989
23208203464164078 ~1989
23208571153176568710 ~1992
23208611464172238 ~1989
23208803464176078 ~1989
232089731392538399 ~1990
23209031464180638 ~1989
23209451464189038 ~1989
23209559464191198 ~1989
23209799464195998 ~1989
23209883464197678 ~1989
23210003464200078 ~1989
23210171464203438 ~1989
232104613713673779 ~1991
23210699464213998 ~1989
23211143464222878 ~1989
232114272321142719 ~1990
23211451259968251310 ~1993
23211709162481963110 ~1992
232121771392730639 ~1990
23212331464246638 ~1989
23212379464247598 ~1989
23212751464255038 ~1989
23212823464256478 ~1989
Exponent Prime Factor Digits Year
23212979464259598 ~1989
23213363464267278 ~1989
232136571392819439 ~1990
23213951464279038 ~1989
23214011464280238 ~1989
23214083464281678 ~1989
23214731464294638 ~1989
23214791464295838 ~1989
23215091464301838 ~1989
23215823464316478 ~1989
232159571392957439 ~1990
232159875571836899 ~1991
232160274178884879 ~1991
232160411392962479 ~1990
23217479464349598 ~1989
232177931393067599 ~1990
232183331393099999 ~1990
23218619464372398 ~1989
23218859464377198 ~1989
23219039464380798 ~1989
232192933715086899 ~1991
23219639464392798 ~1989
23219771464395438 ~1989
23219783464395678 ~1989
232201392322013919 ~1990
Exponent Prime Factor Digits Year
23221091464421838 ~1989
232211473715383539 ~1991
23221259464425198 ~1989
232220536966615919 ~1991
23222219464444398 ~1989
232223691857789539 ~1990
23222891464457838 ~1989
23223143464462878 ~1989
232234011857872099 ~1990
23223731464474638 ~1989
23223803464476078 ~1989
23223923464478478 ~1989
232242171857937379 ~1990
23225063464501278 ~1989
23225123464502478 ~1989
23225413125417230310 ~1992
232256511858052099 ~1990
23225759464515198 ~1989
23225831464516638 ~1989
23225879464517598 ~1989
23226611464532238 ~1989
232268211858145699 ~1990
23226851464537038 ~1989
232272471858179779 ~1990
23227283464545678 ~1989
1613
GIMPS The Prime Pages FactorDb.com
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26-03-15