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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
9481673568900398 ~1987
9481711948171118 ~1987
94817111517073779
9481963948196318 ~1987
94819915309914979 ~1989
94821132086064879 ~1988
9482353568941198 ~1987
9482381568942878 ~1987
9482411189648238 ~1985
9482717568963038 ~1987
9482777568966638 ~1987
9482783189655678 ~1985
94830371517285939 ~1988
9483863189677278 ~1985
9484523189690478 ~1985
9484597569075838 ~1987
9484823189696478 ~1985
9484883189697678 ~1985
9485041569102478 ~1987
9485111189702238 ~1985
9485129758810338 ~1987
9485159189703198 ~1985
9485261758820898 ~1987
9485279189705598 ~1985
9485341569120478 ~1987
Exp. Prime Factor Digits Year
9485501569130078 ~1987
9485513569130798 ~1987
9485713569142798 ~1987
9485803948580318 ~1987
94859335881278479 ~1989
9486481569188878 ~1987
94864871707567679 ~1988
94864971328109599 ~1988
9486671758933698 ~1987
9486977569218638 ~1987
9487001569220078 ~1987
9487319189746398 ~1985
9487781569266878 ~1987
9488093569285598 ~1987
94880935123570239
9488471189769438 ~1985
9488579189771598 ~1985
9488621759089698 ~1987
9488639189772798 ~1985
9488779948877918 ~1987
9488819189776398 ~1985
9488957569337438 ~1987
9489881569392878 ~1987
9489917569395038 ~1987
9491093569465598 ~1987
Exp. Prime Factor Digits Year
9491147759291778 ~1987
9491483189829678 ~1985
9491597569495838 ~1987
9491711189834238 ~1985
9491819189836398 ~1985
9492089759367138 ~1987
9492181569530878 ~1987
9492221569533278 ~1987
9492697569561838 ~1987
9492779189855598 ~1985
9492863189857278 ~1985
9492971189859438 ~1985
9493441569606478 ~1987
9493499189869998 ~1985
9493619189872398 ~1985
9493873180383587110 ~1990
94940812848224319 ~1988
9494123189882478 ~1985
9494137569648238 ~1987
9494257569655438 ~1987
9494291189885838 ~1985
94944619684350239 ~1990
94946691329253679 ~1988
9494783189895678 ~1985
94948279115033939 ~1990
Exp. Prime Factor Digits Year
9494939189898798 ~1985
9494957759596578 ~1987
9495071189901438 ~1985
9495841569750478 ~1987
9495973569758398 ~1987
9496043189920878 ~1985
9496439189928798 ~1985
9496451189929038 ~1985
9496559189931198 ~1985
94966872279204899 ~1988
94973532279364739 ~1988
9497591189951838 ~1985
9497651189953038 ~1985
9498001569880078 ~1987
9498179189963598 ~1985
9498193569891598 ~1987
9498323189966478 ~1985
9498383189967678 ~1986
9498397569903838 ~1987
9498479189969598 ~1986
9498719189974398 ~1986
9498739949873918 ~1987
9498851189977038 ~1986
9498959189979198 ~1986
9498961569937678 ~1987
1028
GIMPS The Prime Pages FactorDb.com
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26-02-08