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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
19403231388064638 ~1988
19403963388079278 ~1988
19404227143591279910 ~1992
19404251388085038 ~1988
19404299388085998 ~1988
19404383388087678 ~1988
194049617761984419 ~1991
19405343388106878 ~1988
194065731164394399 ~1989
194065732716920239
194066635045732399 ~1991
194072474657739299 ~1991
194073371164440239 ~1989
19407431388148638 ~1988
19407623388152478 ~1988
194077331164463999 ~1989
19407959388159198 ~1988
19408223388164478 ~1988
19408283388165678 ~1988
19408643388172878 ~1988
194087713105403379 ~1990
19409063388181278 ~1988
19409339388186798 ~1988
19409399388187998 ~1988
19409471388189438 ~1988
Exponent Prime Factor Digits Year
19409759388195198 ~1988
194098371164590239 ~1989
19410119388202398 ~1988
19410623388212478 ~1988
19411499388229998 ~1988
194117713494118799 ~1990
19412219388244398 ~1988
194122273105956339 ~1990
19412303388246078 ~1988
19412663388253278 ~1988
19413071388261438 ~1988
19413263388265278 ~1988
19413323388266478 ~1988
19413503388270078 ~1988
19413671388273438 ~1988
19414379388287598 ~1988
19414511388290238 ~1988
194145671941456719 ~1990
19414859388297198 ~1988
19414883388297678 ~1988
194150411164902479 ~1989
19415531388310638 ~1988
19415699388313998 ~1988
19416011388320238 ~1988
19416191388323838 ~1988
Exponent Prime Factor Digits Year
194163771553310179 ~1989
19417319388346398 ~1988
19417523388350478 ~1988
19418111388362238 ~1988
194191331165147999 ~1989
19419479388389598 ~1988
19419611388392238 ~1988
19419863388397278 ~1988
19420031388400638 ~1988
19420139388402798 ~1988
19421183388423678 ~1988
194220171165321039 ~1989
19422059388441198 ~1988
19422323388446478 ~1988
19422659388453198 ~1988
194226794661442979 ~1991
19422803388456078 ~1988
19422839388456798 ~1988
194231211165387279 ~1989
19423403388468078 ~1988
194235434661650339 ~1991
194236931165421599 ~1989
19424423388488478 ~1988
194244531165467199 ~1989
19424651388493038 ~1988
Exponent Prime Factor Digits Year
19424711388494238 ~1988
194248031942480319 ~1990
19424843388496878 ~1988
194270413108326579 ~1990
19427279388545598 ~1988
19427459388549198 ~1988
19428011388560238 ~1988
19428179388563598 ~1988
19428371388567438 ~1988
19428443388568878 ~1988
19428551388571038 ~1988
19428743388574878 ~1988
19428791388575838 ~1988
194287911554303299
194290131165740799 ~1989
19429499388589998 ~1988
194297279326268979 ~1991
194300171165801039 ~1989
19430123388602478 ~1988
19430399388607998 ~1988
19430591388611838 ~1988
19430639388612798 ~1988
19430903388618078 ~1988
19431011388620238 ~1988
194312871554502979 ~1989
1457
GIMPS The Prime Pages FactorDb.com
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25-12-14