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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
22114139442282798 ~1988
22114199442283998 ~1988
22114343442286878 ~1988
22114751442295038 ~1988
22115279442305598 ~1988
22115531442310638 ~1988
22115711442314238 ~1988
22115771442315438 ~1988
22116203442324078 ~1988
22116239442324798 ~1988
22116431442328638 ~1988
221165839288964879 ~1992
22116683442333678 ~1988
22117031442340638 ~1988
22117811442356238 ~1988
22118363442367278 ~1988
22118399442367998 ~1988
22118699442373998 ~1988
22119323442386478 ~1988
22119791442395838 ~1988
22121329247758884910 ~1993
22121483442429678 ~1988
221215211327291279 ~1990
22121579442431598 ~1988
221223672212236719 ~1990
Exponent Prime Factor Digits Year
22122539442450798 ~1988
22122599442451998 ~1988
221228273982108879 ~1991
22122851442457038 ~1988
221232371327394239 ~1990
22123943442478878 ~1988
22124159442483198 ~1988
22124423442488478 ~1988
22124449106197355310 ~1992
22124603442492078 ~1988
221246472212464719 ~1990
22125479442509598 ~1988
22125503442510078 ~1988
221257071770056579 ~1990
22125731442514638 ~1988
221259531327557199 ~1990
22126211442524238 ~1988
22126319442526398 ~1988
22126619442532398 ~1988
22126631442532638 ~1988
22127291442545838 ~1988
22127519442550398 ~1988
22127879442557598 ~1988
22128503442570078 ~1988
221286495310875779 ~1991
Exponent Prime Factor Digits Year
221287671770301379 ~1990
22128803442576078 ~1988
221292973540687539 ~1991
22129511442590238 ~1988
22131443442628878 ~1988
22131563442631278 ~1988
221316731327900399 ~1990
22131839442636798 ~1988
221319131327914799 ~1990
22132091442641838 ~1988
22132619442652398 ~1988
221326191770609539
22132931442658638 ~1988
221330871770646979 ~1990
22133183442663678 ~1988
221331912213319119 ~1990
221334792213347919 ~1990
221336271770690179 ~1990
22134011442680238 ~1988
22134839442696798 ~1988
22134851442697038 ~1988
22135103442702078 ~1988
221358771770870179 ~1990
221363411328180479 ~1990
221364078854562819 ~1992
Exponent Prime Factor Digits Year
22137371442747438 ~1988
221374571328247439 ~1990
22137779442755598 ~1988
22138283442765678 ~1988
22138559442771198 ~1988
22139483442789678 ~1988
22139699442793998 ~1988
221397494870744799 ~1991
22139891442797838 ~1988
22140071442801438 ~1988
22141043442820878 ~1988
22141319442826398 ~1988
22141391442827838 ~1988
221414517085264339 ~1991
22141643442832878 ~1988
221420232214202319 ~1990
22142231442844638 ~1988
22142651442853038 ~1988
221429771328578639 ~1990
22143311442866238 ~1988
221434971771479779 ~1990
22143743442874878 ~1988
22143899442877998 ~1988
221443611771548899 ~1990
22144511442890238 ~1988
1500
GIMPS The Prime Pages FactorDb.com
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25-06-08