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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
628791111257582239 ~1992
628802991257605999 ~1992
628811511257623039 ~1992
628811631257623279 ~1992
628848231257696479 ~1992
628862031257724079 ~1992
628868391257736799 ~1992
628882133773292799 ~1993
628900311257800639 ~1992
62890297100624475310 ~1994
628906573773439439 ~1993
628912911257825839 ~1992
62892259113206066310 ~1994
628937391257874799 ~1992
62893801100630081710 ~1994
628958213773749279 ~1993
62896021289321696710 ~1995
628963431257926879 ~1992
628969191257938399 ~1992
628982631257965279 ~1992
628987911257975839 ~1992
629011191258022399 ~1992
629013231258026479 ~1992
62902321188706963110 ~1995
629028773774172639 ~1993
Exponent Prime Factor Digits Year
629029911258059839 ~1992
629035791258071599 ~1992
629043711258087439 ~1992
629045215032361699 ~1993
629045991258091999 ~1992
629073591258147199 ~1992
629110911258221839 ~1992
629120275032962179 ~1993
629146191258292399 ~1992
629147511258295039 ~1992
629149191258298399 ~1992
629154231258308479 ~1992
629155373774932239 ~1993
629158431258316879 ~1992
629163231258326479 ~1992
629164333774985999 ~1993
62918693151004863310 ~1995
629190111258380239 ~1992
629202115033616899 ~1993
629230195033841539 ~1993
629246773775480639 ~1993
629254375034034979 ~1993
629276031258552079 ~1992
629291031258582079 ~1992
629297995034383939 ~1993
Exponent Prime Factor Digits Year
629344191258688399 ~1992
62934583100695332910 ~1994
629360391258720799 ~1992
629393511258787039 ~1992
629400231258800479 ~1992
629428431258856879 ~1992
629441031258882079 ~1992
629448111258896239 ~1992
629461315035690499 ~1993
629465991258931999 ~1992
629489391258978799 ~1992
629489395035915139
629500333777001999 ~1993
629522511259045039 ~1992
629534333777205999 ~1993
629543991259087999 ~1992
629585031259170079 ~1992
62959627113327328710 ~1994
629598111259196239 ~1992
629604831259209679 ~1992
629613133777678799 ~1993
629659791259319599 ~1992
62967227151121344910 ~1995
629674191259348399 ~1992
62967991113342383910 ~1994
Exponent Prime Factor Digits Year
629690573778143439 ~1993
629693031259386079 ~1992
629696391259392799 ~1992
62970841138535850310 ~1994
629716911259433839 ~1992
629723631259447279 ~1992
629736711259473439 ~1992
629753511259507039 ~1992
629755791259511599 ~1992
629768533778611199 ~1993
62977547163741622310 ~1995
629778013778668079 ~1993
629788191259576399 ~1992
629803431259606879 ~1992
629805591259611199 ~1992
629806791259613599 ~1992
629808175038465379 ~1993
629811231259622479 ~1992
62981431113366575910 ~1994
629823711259647439 ~1992
62983183969941018310 ~1997
629837573779025439 ~1993
629841231259682479 ~1992
629876511259753039 ~1992
629889831259779679 ~1992
2216
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25-07-08