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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.
Exp. Prime Factor Digits Year
1680793672317218 ~1983
168080333616077 ~1980
168083933616797 ~1980
1680871302556798 ~1982
1680979168097918 ~1981
168110333622077 ~1980
1681193235367038 ~1982
1681219302619438 ~1982
168125933625197 ~1980
1681321807034098 ~1983
1681517100891038 ~1981
1681573100894398 ~1981
1681619538118098 ~1983
1681661100899678 ~1981
1681661538131538
1681717807224178 ~1983
1681817504545118 ~1983
1681837100910238 ~1981
1681853504555918 ~1983
1681957100917438 ~1981
168211133642237 ~1980
1682237100934238 ~1981
168236333647277 ~1980
1682383168238318 ~1981
168239933647997 ~1980
Exp. Prime Factor Digits Year
1682407269185138 ~1982
1682413504723918 ~1983
16824779522819839 ~1986
16825571312394479 ~1984
1682671269227378 ~1982
1682809370217998 ~1982
1682831807758898 ~1983
1683043706878078 ~1983
1683239134659138 ~1981
168349133669837 ~1980
1683589404061378 ~1982
1683601101016078 ~1981
1683631168363118 ~1981
168397133679437 ~1980
1684031303125598 ~1982
1684229134738338 ~1981
16842292021074819
1684337101060238 ~1981
1684679539097298 ~1983
1684691303244398 ~1982
1684741101084478 ~1981
168488333697677 ~1980
1684937101096238 ~1981
1684937134794978
1684937235891198
Exp. Prime Factor Digits Year
168497933699597 ~1980
1685071707729838 ~1983
16851118526661679 ~1986
16852091078533779 ~1983
1685317101119038 ~1981
1685429640463038 ~1983
168545933709197 ~1980
1685477101128638 ~1981
168548333709677 ~1980
1685543438241198 ~1982
1685549235976878 ~1982
168559133711837 ~1980
168575933715197 ~1980
16858371449819839 ~1984
1685917910395198 ~1983
1685933404623938 ~1982
16859531584795839 ~1984
16861091079109779 ~1983
168620333724077 ~1980
1686257101175438 ~1981
1686287134902978 ~1981
16864032293508099 ~1984
1686473101188398 ~1981
168649133729837 ~1980
168655133731037 ~1980
Exp. Prime Factor Digits Year
1686647134931778 ~1981
1686677404802498 ~1982
1686743708432078 ~1983
1686857101211438 ~1981
1686913101214798 ~1981
168758333751677 ~1980
1687627168762718 ~1981
1687627270020338
1687633101257998 ~1981
168764333752877 ~1980
1687657405037698 ~1982
168773933754797 ~1980
1687759168775918 ~1981
1687783168778318 ~1981
168779933755997 ~1980
168785933757197 ~1980
16878591350287219
1688047168804718 ~1981
1688143675257218 ~1983
16881531046654879 ~1983
168823133764637 ~1980
168824333764877 ~1980
16882611316843599 ~1984
168827933765597 ~1980
1688311709090638 ~1983
353
GIMPS The Prime Pages FactorDb.com
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26-04-05