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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
538494419107698883910 ~1999
538539437323123662310 ~2000
538549337323129602310 ~2000
538549997323129998310 ~2000
538560359107712071910 ~1999
538584983107716996710 ~1999
538605701323163420710 ~2000
538611959107722391910 ~1999
538612043107722408710 ~1999
538612271107722454310 ~1999
538618499107723699910 ~1999
538618571107723714310 ~1999
538620053323172031910 ~2000
538621301430897040910 ~2001
538621439107724287910 ~1999
5386386492585465515311 ~2003
538648031107729606310 ~1999
538667411107733482310 ~1999
538672919107734583910 ~1999
538672943107734588710 ~1999
538675031107735006310 ~1999
538682363107736472710 ~1999
538684651538684651110 ~2001
538705201323223120710 ~2000
538738919107747783910 ~1999
Exponent Prime Factor Digits Year
538740311107748062310 ~1999
538742339107748467910 ~1999
538759591862015345710 ~2001
538766051107753210310 ~1999
538800851107760170310 ~1999
538815971107763194310 ~1999
538819747538819747110 ~2001
538825717323295430310 ~2000
538825751431060600910 ~2001
538827481323296488710 ~2000
538835579107767115910 ~1999
538840871107768174310 ~1999
538864751107772950310 ~1999
538886651107777330310 ~1999
538895177431116141710 ~2001
538918811107783762310 ~1999
538936093323361655910 ~2000
538942199107788439910 ~1999
538950961323370576710 ~2000
538966301323379780710 ~2000
538986443107797288710 ~1999
538989611107797922310 ~1999
538996043107799208710 ~1999
539010011107802002310 ~1999
539036363107807272710 ~1999
Exponent Prime Factor Digits Year
539049431107809886310 ~1999
539057219107811443910 ~1999
539073191107814638310 ~1999
539079481323447688710 ~2000
539084471107816894310 ~1999
539102939107820587910 ~1999
539104691107820938310 ~1999
539107931107821586310 ~1999
539114671539114671110 ~2001
539117123107823424710 ~1999
539118011107823602310 ~1999
539118071107823614310 ~1999
539118373323471023910 ~2000
539140691107828138310 ~1999
539164523107832904710 ~1999
539179211107835842310 ~1999
5392119491186266287911 ~2002
539212319107842463910 ~1999
539215091107843018310 ~1999
539216831107843366310 ~1999
539238263107847652710 ~1999
539245103107849020710 ~1999
539246879431397503310 ~2001
539246951431397560910 ~2001
539247713323548627910 ~2000
Exponent Prime Factor Digits Year
539270723107854144710 ~1999
539272463107854492710 ~1999
539273173323563903910 ~2000
539275307431420245710 ~2001
539278739107855747910 ~1999
539282351107856470310 ~1999
539304131107860826310 ~1999
539315039107863007910 ~1999
539315963107863192710 ~1999
539324939107864987910 ~1999
53936579314239256935312 ~2004
539379539107875907910 ~1999
539402663107880532710 ~1999
539402771431522216910 ~2001
539426117755196563910 ~2001
539438171107887634310 ~1999
5394479831294675159311 ~2002
539466731107893346310 ~1999
539471771107894354310 ~1999
5394721331294733119311 ~2002
539477579107895515910 ~1999
539479799107895959910 ~1999
539491597863186555310 ~2001
539507173323704303910 ~2000
539510879107902175910 ~1999
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25-07-08