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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
26267999525359998 ~1989
26268419525368398 ~1989
26269739525394798 ~1989
26269871525397438 ~1989
26270591525411838 ~1989
26270963525419278 ~1989
262714814203436979 ~1991
26271923525438478 ~1989
26272091525441838 ~1989
262732371576394239 ~1990
262732811576396879 ~1990
262735011576410079 ~1990
26273519525470398 ~1989
26273783525475678 ~1989
262738312101906499 ~1990
26274323525486478 ~1989
26274431525488638 ~1989
26274719525494398 ~1989
26275103525502078 ~1989
262751592627515919 ~1991
26275391525507838 ~1989
262756571576539439 ~1990
26277071525541438 ~1989
26277263525545278 ~1989
262777312102218499 ~1990
Exponent Prime Factor Digits Year
26277791525555838 ~1989
262780996306743779 ~1992
26278163525563278 ~1989
26278559525571198 ~1989
26278883525577678 ~1989
26279171525583438 ~1989
26279303525586078 ~1989
26279699525593998 ~1989
262799411576796479 ~1990
26280431525608638 ~1989
26280791525615838 ~1989
26281091525621838 ~1989
26281499525629998 ~1989
26281523525630478 ~1989
26281763525635278 ~1989
26281823525636478 ~1989
262818412102547299 ~1990
26282219525644398 ~1989
26282363525647278 ~1989
26282771525655438 ~1989
262828072102624579 ~1990
26282831525656638 ~1989
262828312102626499
26283311525666238 ~1989
26284283525685678 ~1989
Exponent Prime Factor Digits Year
26284463525689278 ~1989
262845011577070079 ~1990
262845472102763779 ~1990
262846331577077999 ~1990
26284943525698878 ~1989
26285279525705598 ~1989
26285579525711598 ~1989
26285639525712798 ~1989
26285999525719998 ~1989
26286119525722398 ~1989
26286203525724078 ~1989
262868093680153279 ~1991
26287379525747598 ~1989
26287979525759598 ~1989
262882331577293999 ~1990
262884592103076739 ~1990
262886571577319439 ~1990
262887072628870719 ~1991
26289479525789598 ~1989
262901331577407999 ~1990
262906133680685839 ~1991
26290871525817438 ~1989
26291099525821998 ~1989
262920411577522479 ~1990
26292179525843598 ~1989
Exponent Prime Factor Digits Year
26292239525844798 ~1989
26292839525856798 ~1989
26293079525861598 ~1989
26293331525866638 ~1989
26295023525900478 ~1989
26295683525913678 ~1989
26296043525920878 ~1989
26296079525921598 ~1989
26296139525922798 ~1989
262961636311079139 ~1992
262962171577773039 ~1990
262966611577799679 ~1990
26297363525947278 ~1989
26297783525955678 ~1989
26297819525956398 ~1989
26298263525965278 ~1989
26298791525975838 ~1989
26298851525977038 ~1989
26299379525987598 ~1989
26299523525990478 ~1989
26300591526011838 ~1989
26301179526023598 ~1989
26301239526024798 ~1989
26301323526026478 ~1989
263015232630152319 ~1991
1700
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26-02-08