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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
4209167336733378 ~1984
42092816398107139 ~1987
420931184186237 ~1983
420953984190797 ~1983
4209613252576798 ~1984
4209797589371598 ~1985
42100431094611199 ~1985
421010384202077 ~1983
4210109336808738 ~1984
4210109589415278
4210337252620238 ~1984
4210411673665778 ~1985
4210519421051918 ~1984
4210709589499278 ~1985
4210819421081918 ~1984
421091984218397 ~1983
421111184222237 ~1983
4211117336889378 ~1984
4211219336897538 ~1984
421127984225597 ~1983
4211609336928738 ~1984
421172384234477 ~1983
4211819336945538 ~1984
4211819758127438
4211899758141838 ~1985
Exp. Prime Factor Digits Year
4211983673917298 ~1985
421202384240477 ~1983
4212101336968098 ~1984
421217984243597 ~1983
421220384244077 ~1983
4212343673974898 ~1985
421244384248877 ~1983
4212521337001698 ~1984
4212577674012338 ~1985
4212731337018498 ~1984
4212799421279918 ~1984
4212799758303838
4212973674075698 ~1985
421301984260397 ~1983
421304384260877 ~1983
4213063421306318 ~1984
42131039100302499 ~1988
421319984263997 ~1983
4213277589858798 ~1985
4213397589875598 ~1985
42134832780898799 ~1986
4213757337100578 ~1984
4213889337111138 ~1984
4213907337112578 ~1984
4214669590053678 ~1985
Exp. Prime Factor Digits Year
421471184294237 ~1983
4214741252884478 ~1984
4214753252885198 ~1984
4214761927247438 ~1985
4215091758716398 ~1985
42151571264547119 ~1986
42154571011709699 ~1985
421555184311037 ~1983
421580384316077 ~1983
4215833252949998 ~1984
421583984316797 ~1983
421589984317997 ~1983
4216573674651698 ~1985
4216603421660318 ~1984
421693184338637 ~1983
42169312024126899
4216957253017438 ~1984
421703984340797 ~1983
4217237337378978 ~1984
42174131012179139 ~1985
4217489337399138 ~1984
4217881253072878 ~1984
421825184365037 ~1983
421829984365997 ~1983
421856384371277 ~1983
Exp. Prime Factor Digits Year
42185631012455139
4218707337496578 ~1984
4218917253135038 ~1984
421897184379437 ~1983
421915184383037 ~1983
421928384385677 ~1983
421957184391437 ~1983
4219673253180398 ~1984
4219687421968718 ~1984
42197535316888799 ~1987
421982384396477 ~1983
4219979337598338 ~1984
4220053253203198 ~1984
4220053928411678
42200811603630799 ~1986
422035184407037 ~1983
4220521253231278 ~1984
422054384410877 ~1983
4220813253248798 ~1984
4220971675355378 ~1985
422117984423597 ~1983
4221179337694338
422132384426477 ~1983
422141984428397 ~1983
42214335741148899 ~1987
645
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26-08-02