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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
18410531368210638 ~1988
184107311841073119 ~1989
184110593313990639 ~1990
184118571104711439 ~1989
18412151368243038 ~1988
184122371104734239 ~1989
184123271841232719 ~1989
18412763368255278 ~1988
184129931104779599 ~1989
184131131104786799 ~1989
184132811104796879 ~1989
184132934050924479 ~1990
18413471368269438 ~1988
184136511473092099 ~1989
184138511841385119 ~1989
18414251368285038 ~1988
184143771473150179 ~1989
18414491368289838 ~1988
18414503368290078 ~1988
184148331104889999 ~1989
18415031368300638 ~1988
184150911473207299 ~1989
184155311841553119 ~1989
184157111841571119 ~1989
18416003368320078 ~1988
Exponent Prime Factor Digits Year
18416543368330878 ~1988
18416663147333304110 ~1992
18416819368336398 ~1988
18417011368340238 ~1988
18417359368347198 ~1988
18417599368351998 ~1988
18418643368372878 ~1988
18418979368379598 ~1988
18419399368387998 ~1988
184196171105177039 ~1989
184196571105179439 ~1989
184209291473674339 ~1989
18421043368420878 ~1988
184210971105265839 ~1989
18421379368427598 ~1988
18421439368428798 ~1988
18421619368432398 ~1988
184218911842189119 ~1989
18421943368438878 ~1988
18422171368443438 ~1988
18422231368444638 ~1988
18422291368445838 ~1988
18422303368446078 ~1988
18422759368455198 ~1988
184231371105388239 ~1989
Exponent Prime Factor Digits Year
184233131105398799 ~1989
18423803368476078 ~1988
184238411105430479 ~1989
18424739368494798 ~1988
184248972947983539 ~1990
184253331105519999 ~1989
184257171474057379 ~1989
184258195896262099 ~1991
184260411105562479 ~1989
18426251368525038 ~1988
18426503368530078 ~1988
184270391842703919 ~1989
18427523368550478 ~1988
184275431842754319 ~1989
18427751368555038 ~1988
18427823368556478 ~1988
184282971105697839 ~1989
18428519368570398 ~1988
18428783368575678 ~1988
18429263368585278 ~1988
18429431368588638 ~1988
18429539368590798 ~1988
184302718846530099 ~1991
18430619368612398 ~1988
184307571105845439 ~1989
Exponent Prime Factor Digits Year
184307811474462499 ~1989
184308131105848799 ~1989
18431183368623678 ~1988
18431243368624878 ~1988
18431279368625598 ~1988
18431603368632078 ~1988
18431711368634238 ~1988
18431951368639038 ~1988
18431999368639998 ~1988
18432191368643838 ~1988
18432611368652238 ~1988
18432971368659438 ~1988
18433199368663998 ~1988
184332778847972979 ~1991
18433379368667598 ~1988
18433463368669278 ~1988
18433931368678638 ~1988
184342491474739939 ~1989
184343571474748579 ~1989
18434483368689678 ~1988
184346871474774979 ~1989
18434711368694238 ~1988
184348611474788899 ~1989
184351131106106799 ~1989
18435563368711278 ~1988
1380
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25-07-08