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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
31939031277561219 ~1985
3194273447198238 ~1984
3194417255553378 ~1983
31945331277813219 ~1985
3194561191673678 ~1983
3194563511130098 ~1984
3194567255565378 ~1983
319465163893037 ~1982
3194687766724898 ~1984
3194803319480318 ~1984
3194879255590338 ~1983
3195121191707278 ~1983
3195169702937198 ~1984
3195271575148798 ~1984
31952991022495699 ~1985
3195457191727438 ~1983
3195601191736078 ~1983
319562363912477 ~1982
3195679319567918 ~1984
3195761255660898 ~1983
3196157191769438 ~1983
319616363923277 ~1982
319622363924477 ~1982
3196253191775198 ~1983
319628363925677 ~1982
Exp. Prime Factor Digits Year
31964474411096879 ~1986
319649963929997 ~1982
3196573191794398 ~1983
319669163933837 ~1982
31966912301617539
3196819575427438 ~1984
3196849703306798 ~1984
3196913191814798 ~1983
31971411023085139 ~1985
3197167319716718 ~1984
319721963944397 ~1982
319739963947997 ~1982
31973994092670739
3197401342761387310 ~1988
3197587767420898 ~1984
319772363954477 ~1982
319778363955677 ~1982
3197837191870238 ~1983
3197849255827938 ~1983
319811963962397 ~1982
3198269255861538 ~1983
3198269447757678
3198617191917038 ~1983
31987191535385139 ~1985
319873163974637 ~1982
Exp. Prime Factor Digits Year
3198827575788878 ~1984
3198913191934798 ~1983
3198931319893118 ~1984
3199037191942238 ~1983
3199153191949198 ~1983
31993032047553939 ~1985
3199319255945538 ~1983
319937963987597 ~1982
3199411319941118 ~1984
3199571255965698 ~1983
3199577255966178 ~1983
3199613191976798 ~1983
3199837191990238 ~1983
3199951319995118 ~1984
3200027256002178 ~1983
3200137192008238 ~1983
3200339256027138 ~1983
3200557192033438 ~1983
3200581192034878 ~1983
3200597768143298 ~1984
320066364013277 ~1982
32006772496528079 ~1986
3200789256063138 ~1983
3200837256066978 ~1983
32012291536589939 ~1985
Exp. Prime Factor Digits Year
32014211472653679 ~1985
3201427512228338 ~1984
3201431576257598 ~1984
3201619768388578 ~1984
3201697192101838 ~1983
3201727512276338 ~1984
3201817192109038 ~1983
32018332561466419 ~1986
3201857448259998 ~1984
32019011536912499 ~1985
32019118517083279 ~1987
3201911169060900910
320192364038477 ~1982
320198364039677 ~1982
3202049448286878 ~1984
320231964046397 ~1982
3202723320272318 ~1984
320288364057677 ~1982
3202993704658478 ~1984
320309964061997 ~1982
3203099576557838
3203111256248898 ~1983
320333964066797 ~1982
3203341512534578 ~1984
3203407320340718 ~1984
538
GIMPS The Prime Pages FactorDb.com
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26-05-03