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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
264410896345861379 ~1992
26441399528827998 ~1989
264418672115349379 ~1990
264419512115356099 ~1990
264422112644221119 ~1991
26442323528846478 ~1989
264423971586543839 ~1990
26442551528851038 ~1989
26443283528865678 ~1989
26444039528880798 ~1989
26444051528881038 ~1989
264441611586649679 ~1990
26444471528889438 ~1989
26444543528890878 ~1989
26444711528894238 ~1989
26445203528904078 ~1989
26445323528906478 ~1989
26445851528917038 ~1989
26446319528926398 ~1989
26446559528931198 ~1989
264472514231560179 ~1991
264477771586866639 ~1990
26448143528962878 ~1989
26448491528969838 ~1989
26448683528973678 ~1989
Exponent Prime Factor Digits Year
26449019528980398 ~1989
26449211528984238 ~1989
264492531586955199 ~1990
26449259528985198 ~1989
26449763528995278 ~1989
26450219529004398 ~1989
264504292116034339 ~1990
26451143529022878 ~1989
26451251529025038 ~1989
264514192116113539 ~1990
26451443529028878 ~1989
26451671529033438 ~1989
264517011587102079 ~1990
26452319529046398 ~1989
26453051529061038 ~1989
264531772116254179 ~1990
26453347153429412710 ~1993
26454011148142461710 ~1993
264541331587247999 ~1990
26454383529087678 ~1989
26455139529102798 ~1989
264551992116415939 ~1990
26455463529109278 ~1989
26455763529115278 ~1989
26455823529116478 ~1989
Exponent Prime Factor Digits Year
26456519529130398 ~1989
264573773704032799 ~1991
264575811587454879 ~1990
26457803529156078 ~1989
26457863529157278 ~1989
26458031529160638 ~1989
26458499529169998 ~1989
26458559529171198 ~1989
264587234233395699 ~1991
26458741232836920910 ~1993
264588131587528799 ~1990
26458871529177438 ~1989
26459099529181998 ~1989
26459159529183198 ~1989
26459483529189678 ~1989
26459711529194238 ~1989
26460503529210078 ~1989
26460719529214398 ~1989
26460911529218238 ~1989
26461199529223998 ~1989
26461223529224478 ~1989
26461691529233838 ~1989
26461859529237198 ~1989
26461943529238878 ~1989
264620272116962179 ~1990
Exponent Prime Factor Digits Year
26462699529253998 ~1989
26463071529261438 ~1989
26463659529273198 ~1989
264637971587827839 ~1990
26464859111152407910 ~1992
26465291529305838 ~1989
264655072117240579 ~1990
26465531529310638 ~1989
264655632646556319 ~1991
26466119529322398 ~1989
26466179529323598 ~1989
264663298469225299 ~1992
26466383529327678 ~1989
26466683529333678 ~1989
26466899529337998 ~1989
26467139529342798 ~1989
26467379529347598 ~1989
264674092117392739 ~1990
264678531588071199 ~1990
26468027174688978310 ~1993
26468231529364638 ~1989
26468347105873388110 ~1992
26468399529367998 ~1989
26469203529384078 ~1989
26469491529389838 ~1989
1697
GIMPS The Prime Pages FactorDb.com
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26-01-11