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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
18790631375812638 ~1988
187911071879110719 ~1990
18791183375823678 ~1988
18791603375832078 ~1988
18791891375837838 ~1988
187931211127587279 ~1989
187932971127597839 ~1989
187935131127610799 ~1989
18793751375875038 ~1988
18794003375880078 ~1988
18794159375883198 ~1988
18794459375889198 ~1988
187946691503573539 ~1989
187949215638476319 ~1991
187950613007209779 ~1990
18795289270652161710 ~1992
18795743375914878 ~1988
187963031879630319 ~1990
18796523375930478 ~1988
187967171127803039 ~1989
187968234511237539 ~1990
18797183375943678 ~1988
18797939375958798 ~1988
18798203375964078 ~1988
18798359375967198 ~1988
Exponent Prime Factor Digits Year
187986291503890339 ~1989
18798683375973678 ~1988
18799223375984478 ~1988
18799439375988798 ~1988
18800003376000078 ~1988
18800819376016398 ~1988
18801011376020238 ~1988
188016913384304399 ~1990
18802403376048078 ~1988
18802499376049998 ~1988
188027811128166879 ~1989
18803171376063438 ~1988
18803231376064638 ~1988
188040771128244639 ~1989
188040771504326179
18804959376099198 ~1988
18805331376106638 ~1988
18805463376109278 ~1988
188057331128343999 ~1989
18805739376114798 ~1988
18806519376130398 ~1988
188066871504534979 ~1989
188070134137542879 ~1990
18807143376142878 ~1988
18808151376163038 ~1988
Exponent Prime Factor Digits Year
188085714890228479 ~1991
18808703376174078 ~1988
18808739376174798 ~1988
18809291376185838 ~1988
18809519376190398 ~1988
18809723376194478 ~1988
18809783376195678 ~1988
188102171128613039 ~1989
188102175643065119
18810419376208398 ~1988
18810563376211278 ~1988
18811031376220638 ~1988
188110991881109919 ~1990
18812291376245838 ~1988
18813479376269598 ~1988
188137571128825439 ~1989
188139431881394319 ~1990
188139831930314655911 ~1994
18814331376286638 ~1988
18814619376292398 ~1988
18814643376292878 ~1988
18814811376296238 ~1988
188154731128928399 ~1989
18815831376316638 ~1988
18816131376322638 ~1988
Exponent Prime Factor Digits Year
18816223244610899110 ~1992
18816359376327198 ~1988
18817751376355038 ~1988
18817763376355278 ~1988
18817871376357438 ~1988
18817919376358398 ~1988
18818399376367998 ~1988
18818771376375438 ~1988
18819551376391038 ~1988
188200971129205839 ~1989
188208735646261919 ~1991
18820943376418878 ~1988
18821063376421278 ~1988
18821459376429198 ~1988
18821639376432798 ~1988
188216574517197699 ~1990
18821879376437598 ~1988
18821963376439278 ~1988
188219837905232879 ~1991
18822299376445998 ~1988
18822431376448638 ~1988
18822599376451998 ~1988
18822623376452478 ~1988
18823163376463278 ~1988
188237711882377119 ~1990
1394
GIMPS The Prime Pages FactorDb.com
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25-07-08