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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
4205347672855538 ~1985
4205473252328398 ~1984
4205581252334878 ~1984
42057132271085039 ~1986
420587984117597 ~1983
4205951336476098 ~1984
42059511766499439
4205977252358638 ~1984
42060531261815919 ~1986
4206179336494338 ~1984
4206281336502498 ~1984
4206703673072498 ~1985
4206899757241838 ~1985
4207139757285038 ~1985
42072431009738339 ~1985
42073391009761379 ~1985
4207663673226098 ~1985
420769184153837 ~1983
420779984155997 ~1983
420788384157677 ~1983
4207901336632098 ~1984
4208221252493278 ~1984
4208341252500478 ~1984
4208357252501438 ~1984
4208387336670978 ~1984
Exp. Prime Factor Digits Year
42084291346697299 ~1986
4208717252523038 ~1984
4208717336697378
420890384178077 ~1983
420899984179997 ~1983
42090971010183299 ~1985
4209131336730498 ~1984
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
Exp. Prime Factor Digits Year
4211219336897538 ~1984
421127984225597 ~1983
4211609336928738 ~1984
421172384234477 ~1983
4211819336945538 ~1984
4211983673917298 ~1985
421202384240477 ~1983
4212101336968098 ~1984
421217984243597 ~1983
421220384244077 ~1983
4212343673974898 ~1985
421244384248877 ~1983
4212521337001698 ~1984
4212577674012338 ~1985
4212731337018498 ~1984
4212799421279918 ~1984
4212973674075698 ~1985
421301984260397 ~1983
421304384260877 ~1983
4213063421306318 ~1984
42131039100302499 ~1988
421319984263997 ~1983
4213277589858798 ~1985
4213397589875598 ~1985
4213757337100578 ~1984
Exp. Prime Factor Digits Year
4213889337111138 ~1984
4213907337112578 ~1984
4214669590053678 ~1985
421471184294237 ~1983
4214741252884478 ~1984
4214753252885198 ~1984
4214761927247438 ~1985
4215091758716398 ~1985
42151571264547119 ~1986
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
628
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25-11-17