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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
21916871438337438 ~1988
21916991438339838 ~1988
219174192191741919 ~1990
21917639438352798 ~1988
219176832191768319 ~1990
21917783438355678 ~1988
219183073506929139 ~1991
21918443438368878 ~1988
21918791438375838 ~1988
219190191753521539 ~1990
21919223438384478 ~1988
21919259438385198 ~1988
21919763438395278 ~1988
21919823438396478 ~1988
219198312191983119 ~1990
219204134822490879 ~1991
21920831438416638 ~1988
21920891438417838 ~1988
21920903438418078 ~1988
21920963438419278 ~1988
219210171315261039 ~1990
21921059438421198 ~1988
219213373507413939 ~1991
21921359438427198 ~1988
21921803438436078 ~1988
Exponent Prime Factor Digits Year
21922091438441838 ~1988
21922319438446398 ~1988
21922559438451198 ~1988
21922619438452398 ~1988
219229611315377679 ~1990
21923411438468238 ~1988
219243373507893939 ~1991
21924839438496798 ~1988
219249611315497679 ~1990
219250211315501279 ~1990
21925103438502078 ~1988
219253331315519999 ~1990
21925511438510238 ~1988
219255733508091699 ~1991
21925751438515038 ~1988
219258371315550239 ~1990
21926519438530398 ~1988
21926939438538798 ~1988
219275175262604099 ~1991
219277331315663999 ~1990
219279495262707779 ~1991
21928619438572398 ~1988
219287571315725439 ~1990
21928883438577678 ~1988
219292936578787919 ~1991
Exponent Prime Factor Digits Year
21929639438592798 ~1988
21929903438598078 ~1988
219303471754427779 ~1990
21930383438607678 ~1988
219304973070269599 ~1990
21930791438615838 ~1988
21930803438616078 ~1988
21931271438625438 ~1988
219314472193144719 ~1990
21931571438631438 ~1988
21931631438632638 ~1988
21931979438639598 ~1988
21932063438641278 ~1988
21932591438651838 ~1988
219327971315967839 ~1990
21932819438656398 ~1988
21933491438669838 ~1988
21933539438670798 ~1988
21933911438678238 ~1988
219343571316061439 ~1990
219345471754763779 ~1990
21934823438696478 ~1988
21935183438703678 ~1988
219352131316112799 ~1990
21935213157933533710
Exponent Prime Factor Digits Year
219356093070985279 ~1990
21935999438719998 ~1988
21936419438728398 ~1988
21936683438733678 ~1988
219372411316234479 ~1990
21937379438747598 ~1988
219373872193738719 ~1990
21937763210602524910 ~1992
21938459438769198 ~1988
21938723438774478 ~1988
21938951438779038 ~1988
21939143438782878 ~1988
21940511438810238 ~1988
219406371316438239 ~1990
21940799438815998 ~1988
21941123438822478 ~1988
219412791755302339 ~1990
21941651438833038 ~1988
219417912194179119 ~1990
21942059438841198 ~1988
21942143438842878 ~1988
21942191438843838 ~1988
21942659438853198 ~1988
21942923438858478 ~1988
21943199438863998 ~1988
1552
GIMPS The Prime Pages FactorDb.com
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26-01-11