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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
41553419831068398 ~1990
41554283831085678 ~1990
41554391831087838 ~1990
41554559831091198 ~1990
41555291831105838 ~1990
415556213324449699 ~1992
415562716649003379 ~1993
41556563831131278 ~1990
41556863831137278 ~1990
415571834155718319 ~1992
41557751831155038 ~1990
41558351831167038 ~1990
41558459831169198 ~1990
41558483831169678 ~1990
415589813324718499 ~1992
41559599831191998 ~1990
41559803831196078 ~1990
41561603831232078 ~1990
41561879831237598 ~1990
41562431831248638 ~1990
415629794156297919 ~1992
415658093325264739 ~1992
41567651831353038 ~1990
41567723831354478 ~1990
41567843831356878 ~1990
Exponent Prime Factor Digits Year
41568311831366238 ~1990
415693732494162399 ~1992
41569823831396478 ~1990
41570051831401038 ~1990
41570759831415198 ~1990
41571599831431998 ~1990
41571839831436798 ~1990
41572691831453838 ~1990
41574059831481198 ~1990
41574959831499198 ~1990
41577803831556078 ~1990
415779194157791919 ~1992
41578259831565198 ~1990
41578919831578398 ~1990
41579171831583438 ~1990
41580263831605278 ~1990
415803132494818799 ~1992
41580491831609838 ~1990
415831279979950499 ~1993
41583359831667198 ~1990
41583383831667678 ~1990
41583611831672238 ~1990
41584583831691678 ~1990
41585543831710878 ~1990
41587739831754798 ~1990
Exponent Prime Factor Digits Year
41587811831756238 ~1990
41588399831767998 ~1990
41588471831769438 ~1990
415885077485931279 ~1993
41588951831779038 ~1990
415891132495346799 ~1992
41589263831785278 ~1990
41589371831787438 ~1990
41589503831790078 ~1990
41590931831818638 ~1990
41591939831838798 ~1990
415922332495533999 ~1992
415931575823041999 ~1993
41593523831870478 ~1990
41594411831888238 ~1990
415952273327618179 ~1992
41595371831907438 ~1990
415966495823530879 ~1993
41597399831947998 ~1990
41600771832015438 ~1990
416024093328192739 ~1992
416024416656390579 ~1993
41603291832065838 ~1990
41603843832076878 ~1990
41604203832084078 ~1990
Exponent Prime Factor Digits Year
416043732496262399 ~1992
416053313328426499 ~1992
41605391832107838 ~1990
41606951832139038 ~1990
41607179832143598 ~1990
41609723832194478 ~1990
41610539832210798 ~1990
41610923832218478 ~1990
416113212496679279 ~1992
41613479832269598 ~1990
41617739832354798 ~1990
41617991832359838 ~1990
41618459832369198 ~1990
416192932497157599 ~1992
416194972497169839 ~1992
416206372697017277711 ~1997
41621231832424638 ~1990
41622419832448398 ~1990
41622551832451038 ~1990
41622803832456078 ~1990
41622989258062531910 ~1994
41624879832497598 ~1990
416250139157502879 ~1993
416258212497549279 ~1992
41626499832529998 ~1990
1960
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25-06-08