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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
21924839438496798 ~1988
219250211315501279 ~1989
21925103438502078 ~1988
219253331315519999 ~1989
21925511438510238 ~1988
219255733508091699 ~1991
21925751438515038 ~1988
219258371315550239 ~1989
21926519438530398 ~1988
21926939438538798 ~1988
219275175262604099 ~1991
219277331315663999 ~1989
219279495262707779 ~1991
21928619438572398 ~1988
219287571315725439 ~1989
21928883438577678 ~1988
219292936578787919 ~1991
21929639438592798 ~1988
21929903438598078 ~1988
219303471754427779 ~1990
21930383438607678 ~1988
219304973070269599 ~1990
21930791438615838 ~1988
21930803438616078 ~1988
21931271438625438 ~1988
Exponent Prime Factor Digits Year
219314472193144719 ~1990
21931571438631438 ~1988
21931631438632638 ~1988
21931979438639598 ~1988
21932063438641278 ~1988
21932591438651838 ~1988
219327971315967839 ~1989
21932819438656398 ~1988
21933491438669838 ~1988
21933539438670798 ~1988
21933911438678238 ~1988
219343571316061439 ~1989
219345471754763779 ~1990
21934823438696478 ~1988
21935183438703678 ~1988
21935213157933533710 ~1992
219356093070985279 ~1990
21935999438719998 ~1988
21936419438728398 ~1988
21936683438733678 ~1988
219372411316234479 ~1989
21937379438747598 ~1988
219373872193738719 ~1990
21937763210602524910 ~1992
21938459438769198 ~1988
Exponent Prime Factor Digits Year
21938723438774478 ~1988
21938951438779038 ~1988
21939143438782878 ~1988
21940511438810238 ~1988
219406371316438239 ~1989
21940799438815998 ~1988
21941123438822478 ~1988
219412791755302339 ~1990
21941651438833038 ~1988
219417912194179119 ~1990
21942059438841198 ~1988
21942143438842878 ~1988
21942191438843838 ~1988
21942659438853198 ~1988
21942923438858478 ~1988
21943199438863998 ~1988
219433333510933299 ~1991
219433872194338719 ~1990
219436971316621839 ~1989
219438371316630239 ~1989
21943871438877438 ~1988
21943919438878398 ~1988
21944099438881998 ~1988
219441371316648239 ~1989
21944243438884878 ~1988
Exponent Prime Factor Digits Year
21944423438888478 ~1988
21944651438893038 ~1988
21944759438895198 ~1988
219448371316690239 ~1989
21945191438903838 ~1988
21945239438904798 ~1988
21945383438907678 ~1988
219458211316749279 ~1989
21946079438921598 ~1988
219466011316796079 ~1989
21946751438935038 ~1988
219470894828359599 ~1991
21947483438949678 ~1988
21948323438966478 ~1988
219488211316929279 ~1989
21948851438977038 ~1988
21949139438982798 ~1988
21949223438984478 ~1988
219497894828953599 ~1991
21949871438997438 ~1988
219501971317011839 ~1989
21950783439015678 ~1988
21951179439023598 ~1988
219512113951217999 ~1991
219515331317091999 ~1989
1478
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25-04-13