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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
17228111344562238 ~1987
172285371378282979 ~1989
17228663344573278 ~1987
172286712756587379 ~1990
172287117236058639 ~1991
17229011344580238 ~1987
172290591378324739 ~1989
172291271722912719 ~1989
172294811033768879 ~1989
172295391378363139 ~1989
172295811378366499 ~1989
17229851344597038 ~1987
17230019344600398 ~1987
17230259344605198 ~1987
17230403344608078 ~1987
172309571033857439 ~1989
17231099344621998 ~1987
17231171344623438 ~1987
172313211033879279 ~1989
17231867168872296710 ~1992
17232263344645278 ~1987
172325411033952479 ~1989
172326892412576479 ~1990
17233691344673838 ~1987
17233763344675278 ~1987
Exponent Prime Factor Digits Year
172342931034057599 ~1989
17234303344686078 ~1987
172345991723459919 ~1989
17234603344692078 ~1987
17234963344699278 ~1987
17235083344701678 ~1987
172352411034114479 ~1989
17235563344711278 ~1987
172358511378868099 ~1989
172369811034218879 ~1989
172370211034221279 ~1989
17237183344743678 ~1987
172375516895020419 ~1991
17237639344752798 ~1987
17237723344754478 ~1987
17237939344758798 ~1987
17238191344763838 ~1987
17238359344767198 ~1987
172385531034313199 ~1989
17238563344771278 ~1987
17238779344775598 ~1987
17239031344780638 ~1987
17239451344789038 ~1987
17239559344791198 ~1987
17239571344791438 ~1987
Exponent Prime Factor Digits Year
17239991344799838 ~1987
172404731034428399 ~1989
172407892413710479 ~1990
17241083344821678 ~1987
172420331034521999 ~1989
17242679344853598 ~1987
172426812758828979 ~1990
17242859344857198 ~1987
172428674138288099 ~1990
172434411379475299 ~1989
17243651344873038 ~1987
17243819344876398 ~1987
172438811034632879 ~1989
172439771034638639 ~1989
17244011344880238 ~1987
172440371034642239 ~1989
17244659344893198 ~1987
17245031344900638 ~1987
17245919344918398 ~1987
17246063344921278 ~1987
17246171344923438 ~1987
17246291344925838 ~1987
17246843344936878 ~1987
17247011344940238 ~1987
17247479344949598 ~1987
Exponent Prime Factor Digits Year
17248151344963038 ~1987
172481991379855939 ~1989
17248499344969998 ~1987
17248571344971438 ~1987
172487171034923039 ~1989
172488771379910179 ~1989
17248943344978878 ~1987
17249651344993038 ~1987
17249723344994478 ~1987
17249819344996398 ~1987
17250059345001198 ~1987
17250179345003598 ~1987
17250323345006478 ~1987
17250683345013678 ~1987
17250743345014878 ~1987
172507971380063779 ~1989
17250899345017998 ~1987
17250923345018478 ~1987
172511811035070879 ~1989
172516976555644879 ~1991
17251919345038398 ~1987
17252363345047278 ~1987
17252531345050638 ~1987
17252663345053278 ~1987
17252699345053998 ~1987
1338
GIMPS The Prime Pages FactorDb.com
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25-07-08