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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
28828571576571438 ~1989
28829231576584638 ~1989
28829459576589198 ~1989
288298372306386979 ~1991
28830071576601438 ~1989
28830083576601678 ~1989
288305392306443139 ~1991
28830671576613438 ~1989
28830731576614638 ~1989
288308211729849279 ~1990
28830911576618238 ~1989
28831079576621598 ~1989
28831931576638638 ~1989
288320714613131379 ~1991
28832711576654238 ~1989
288334011730004079 ~1990
288348599227154899 ~1992
28835879576717598 ~1989
288367931730207599 ~1990
28836887282601492710 ~1993
28836911576738238 ~1989
28837103576742078 ~1989
28837751576755038 ~1989
28838291576765838 ~1989
28839491576789838 ~1989
Exponent Prime Factor Digits Year
28839683576793678 ~1989
28839911576798238 ~1989
288399312883993119 ~1991
28840319576806398 ~1989
28840523576810478 ~1989
288406672307253379 ~1991
28840979576819598 ~1989
28841723576834478 ~1989
28841731115366924110 ~1992
288424611730547679 ~1990
28842479576849598 ~1989
28842491576849838 ~1989
288430636922335139 ~1992
288436011730616079 ~1990
28844339576886798 ~1989
28844411576888238 ~1989
288445792307566339 ~1991
288448611730691679 ~1990
28846403576928078 ~1989
28847099576941998 ~1989
28847471576949438 ~1989
28847783576955678 ~1989
28847891576957838 ~1989
28848299576965998 ~1989
28849031576980638 ~1989
Exponent Prime Factor Digits Year
28849511576990238 ~1989
28849883576997678 ~1989
28850051577001038 ~1989
28850771577015438 ~1989
288511971731071839 ~1990
28851503577030078 ~1989
288515218655456319 ~1992
288519192885191919 ~1991
28852979577059598 ~1989
28853939577078798 ~1989
28854383577087678 ~1989
28855223577104478 ~1989
28855283577105678 ~1989
288559019233888339 ~1992
28856291577125838 ~1989
288565931731395599 ~1990
28856759577135198 ~1989
28856819577136398 ~1989
28857359577147198 ~1989
28857443577148878 ~1989
28857623577152478 ~1989
288580036925920739 ~1992
28858499577169998 ~1989
28858751577175038 ~1989
28859459577189198 ~1989
Exponent Prime Factor Digits Year
28860131577202638 ~1989
28860323577206478 ~1989
28860599577211998 ~1989
28860731577214638 ~1989
28860983577219678 ~1989
28861559577231198 ~1989
28862303577246078 ~1989
28862579577251598 ~1989
28862759577255198 ~1989
28862783577255678 ~1989
288630971731785839 ~1990
28863119577262398 ~1989
28863491577269838 ~1989
28863899577277998 ~1989
288640492309123939 ~1991
288643612309148899 ~1991
28864499577289998 ~1989
28864523577290478 ~1989
28865051577301038 ~1989
28865519577310398 ~1989
28865591577311838 ~1989
28866011577320238 ~1989
28866083577321678 ~1989
28866371577327438 ~1989
28866599577331998 ~1989
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25-04-13