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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
25340279506805598 ~1989
25342043506840878 ~1989
25342111182463199310 ~1993
25342139506842798 ~1989
25342327101369308110 ~1992
25342379506847598 ~1989
25342991506859838 ~1989
253432331520593999 ~1990
25343471506869438 ~1989
25344131506882638 ~1989
25344491121653556910 ~1992
25344563506891278 ~1989
25344719506894398 ~1989
25344743506894878 ~1989
25344779506895598 ~1989
253451572027612579 ~1990
25346423506928478 ~1989
253474372027794979 ~1990
25347911506958238 ~1989
253480916590503679 ~1992
25348643506972878 ~1989
25348703506974078 ~1989
25349039506980798 ~1989
253491533548881439 ~1991
25349183506983678 ~1989
Exponent Prime Factor Digits Year
253493219632741999 ~1992
25349531506990638 ~1989
253504971521029839 ~1990
253505992028047939 ~1990
25350971507019438 ~1989
253511411521068479 ~1990
25351223507024478 ~1989
253515112028120899 ~1990
25351523507030478 ~1989
253516571521099439 ~1990
253521436084514339 ~1991
25352231507044638 ~1989
25352399507047998 ~1989
25352891507057838 ~1989
25353299507065998 ~1989
25353431507068638 ~1989
25353623507072478 ~1989
25354019507080398 ~1989
25354271507085438 ~1989
25354991507099838 ~1989
253558398620985279 ~1992
25356563669413263310 ~1994
25356731507134638 ~1989
25357019507140398 ~1989
25357859507157198 ~1989
Exponent Prime Factor Digits Year
25358771507175438 ~1989
253588331521529999 ~1990
25358843507176878 ~1989
25359083507181678 ~1989
25359419507188398 ~1989
25359539507190798 ~1989
25359839507196798 ~1989
253598712535987119 ~1991
25360403507208078 ~1989
253609131521654799 ~1990
253612931521677599 ~1990
25361579507231598 ~1989
25361899405790384110 ~1993
25362731507254638 ~1989
25362803507256078 ~1989
25362839507256798 ~1989
25363199507263998 ~1989
25364039507280798 ~1989
253641731521850399 ~1990
25364291507285838 ~1989
25364723507294478 ~1989
253652114058433779 ~1991
253662912536629119 ~1991
25367123507342478 ~1989
253672192029377539 ~1990
Exponent Prime Factor Digits Year
25367939507358798 ~1989
25368851507377038 ~1989
25368911507378238 ~1989
25369511507390238 ~1989
25369979507399598 ~1989
253702371522214239 ~1990
25370399507407998 ~1989
25370711507414238 ~1989
25370879507417598 ~1989
25371371507427438 ~1989
253720731522324399 ~1990
253725974059615539 ~1991
253730872029846979 ~1990
253732811522396879 ~1990
253740531522443199 ~1990
253742771522456639 ~1990
25375403507508078 ~1989
25375859507517198 ~1989
25375919507518398 ~1989
25375943507518878 ~1989
25376059304512708110 ~1993
25376423507528478 ~1989
253774211522645279 ~1990
25377491507549838 ~1989
253776412030211299 ~1990
1591
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25-05-04