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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
21896879437937598 ~1988
218970171751761379 ~1990
21897371437947438 ~1988
218974334817435279 ~1991
21897611437952238 ~1988
21897803437956078 ~1988
21898379437967598 ~1988
218985771751886179 ~1990
218986731313920399 ~1989
218991591751932739 ~1990
218994312189943119 ~1990
21899543437990878 ~1988
21899831437996638 ~1988
21900299438005998 ~1988
21901259438025198 ~1988
21901403438028078 ~1988
219015193942273439 ~1991
21901571438031438 ~1988
219015713942282799
21901619438032398 ~1988
21902063438041278 ~1988
219022011314132079 ~1989
21902339438046798 ~1988
21902663438053278 ~1988
21902711438054238 ~1988
Exponent Prime Factor Digits Year
21903083438061678 ~1988
21903683438073678 ~1988
21904271438085438 ~1988
21904643438092878 ~1988
21905291438105838 ~1988
21905399438107998 ~1988
21905711438114238 ~1988
219061611752492899 ~1990
219064133066897839 ~1990
21907117276029674310 ~1993
219074933067049039 ~1990
21907871438157438 ~1988
21907943438158878 ~1988
219081792190817919 ~1990
21908219438164398 ~1988
21908483438169678 ~1988
21908651438173038 ~1988
219086712190867119 ~1990
219089871752718979 ~1990
219091011752728099 ~1990
21909743438194878 ~1988
21909911438198238 ~1988
21910799438215998 ~1988
21911003438220078 ~1988
21911231438224638 ~1988
Exponent Prime Factor Digits Year
21911891438237838 ~1988
219120471752963779 ~1990
219121731314730399 ~1989
21912419438248398 ~1988
21912431438248638 ~1988
219127992191279919 ~1990
21913499438269998 ~1988
219137113944467999 ~1991
21914339438286798 ~1988
219145331314871999 ~1989
219145392191453919 ~1990
21914591438291838 ~1988
21914891438297838 ~1988
21915119438302398 ~1988
21915191438303838 ~1988
219156293068188079 ~1990
219158232191582319 ~1990
21916379438327598 ~1988
219163931314983599 ~1989
219165375465984327911 ~1996
21916871438337438 ~1988
21916991438339838 ~1988
21917639438352798 ~1988
219176832191768319 ~1990
21917783438355678 ~1988
Exponent Prime Factor Digits Year
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 ~1989
21921059438421198 ~1988
219213373507413939 ~1991
21921359438427198 ~1988
21921803438436078 ~1988
21922091438441838 ~1988
21922319438446398 ~1988
21922559438451198 ~1988
21922619438452398 ~1988
21923411438468238 ~1988
219243373507893939 ~1991
1477
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25-04-13