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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
17231171344623438 ~1988
172313211033879279 ~1989
17231867168872296710 ~1992
17232263344645278 ~1988
172325411033952479 ~1989
172326892412576479 ~1990
17233691344673838 ~1988
17233763344675278 ~1988
172342931034057599 ~1989
17234303344686078 ~1988
172345991723459919 ~1989
17234603344692078 ~1988
17234963344699278 ~1988
17235083344701678 ~1988
172352411034114479 ~1989
17235563344711278 ~1988
172358511378868099 ~1989
172369811034218879 ~1989
172370211034221279 ~1989
17237183344743678 ~1988
172375516895020419 ~1991
17237639344752798 ~1988
17237723344754478 ~1988
17237939344758798 ~1988
17238191344763838 ~1988
Exponent Prime Factor Digits Year
17238359344767198 ~1988
172385531034313199 ~1989
17238563344771278 ~1988
17238779344775598 ~1988
17239031344780638 ~1988
17239451344789038 ~1988
17239559344791198 ~1988
17239571344791438 ~1988
17239991344799838 ~1988
172404731034428399 ~1989
172407892413710479 ~1990
17241083344821678 ~1988
172420331034521999 ~1989
17242679344853598 ~1988
172426812758828979 ~1990
17242859344857198 ~1988
172428674138288099 ~1990
172434411379475299 ~1989
17243651344873038 ~1988
17243819344876398 ~1988
172438811034632879 ~1989
172439771034638639 ~1989
17244011344880238 ~1988
172440371034642239 ~1989
17244659344893198 ~1988
Exponent Prime Factor Digits Year
17245031344900638 ~1988
17245919344918398 ~1988
17246063344921278 ~1988
17246171344923438 ~1988
17246291344925838 ~1988
17246843344936878 ~1988
17247011344940238 ~1988
172473611034841679 ~1989
17247479344949598 ~1988
17248151344963038 ~1988
172481991379855939 ~1989
17248499344969998 ~1988
17248571344971438 ~1988
172487171034923039 ~1989
172488771379910179 ~1989
17248943344978878 ~1988
17249651344993038 ~1988
17249723344994478 ~1988
17249819344996398 ~1988
17250059345001198 ~1988
17250179345003598 ~1988
17250323345006478 ~1988
17250683345013678 ~1988
17250743345014878 ~1988
172507971380063779 ~1989
Exponent Prime Factor Digits Year
17250899345017998 ~1988
17250923345018478 ~1988
172511811035070879 ~1989
172515131035090799 ~1989
172516976555644879 ~1991
17251919345038398 ~1988
17252363345047278 ~1988
17252531345050638 ~1988
17252663345053278 ~1988
17252699345053998 ~1988
172529712760475379 ~1990
172531671380253379 ~1989
172533371035200239 ~1989
17253443345068878 ~1988
172540791380326339 ~1989
17254511345090238 ~1988
17254823345096478 ~1988
17254883345097678 ~1988
172551771035310639 ~1989
17255723345114478 ~1988
17255939345118798 ~1988
17257451345149038 ~1988
172575011035450079 ~1989
17257511345150238 ~1988
17257631345152638 ~1988
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25-09-22