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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
26251163525023278 ~1989
26251223525024478 ~1989
26251343525026878 ~1989
26251523525030478 ~1989
26251619525032398 ~1989
26251811525036238 ~1989
26252183525043678 ~1989
26252339525046798 ~1989
26253191525063838 ~1989
26253203525064078 ~1989
26253299525065998 ~1989
26253371525067438 ~1989
26253443525068878 ~1989
262537131575222799 ~1990
262544331575265999 ~1990
26254463525089278 ~1989
26254691525093838 ~1989
262547411575284479 ~1990
26255111525102238 ~1989
26255291525105838 ~1989
26255783525115678 ~1989
26256371525127438 ~1989
26256539525130798 ~1989
262573392625733919 ~1991
262575472100603779 ~1990
Exponent Prime Factor Digits Year
26257739525154798 ~1989
26258231525164638 ~1989
26258279525165598 ~1989
26258723525174478 ~1989
26259179525183598 ~1989
26259839525196798 ~1989
26259911525198238 ~1989
26260211525204238 ~1989
26260523525210478 ~1989
262609011575654079 ~1990
262609672100877379 ~1990
26261783525235678 ~1989
26262539525250798 ~1989
26262779525255598 ~1989
262629792626297919 ~1991
26263571525271438 ~1989
262640093676961279 ~1991
262640876303380899 ~1992
262643336303439939 ~1992
26264663525293278 ~1989
262653134202450099 ~1991
26265719525314398 ~1989
26265779525315598 ~1989
26266403525328078 ~1989
26266451525329038 ~1989
Exponent Prime Factor Digits Year
262666936304006339 ~1992
262668112101344899 ~1990
26266979525339598 ~1989
262673171576039039 ~1990
26267999525359998 ~1989
26268419525368398 ~1989
26269739525394798 ~1989
26269871525397438 ~1989
26270591525411838 ~1989
26270963525419278 ~1989
262714814203436979 ~1991
26271923525438478 ~1989
26272091525441838 ~1989
262732371576394239 ~1990
262732811576396879 ~1990
262735011576410079 ~1990
26273519525470398 ~1989
26273783525475678 ~1989
26274323525486478 ~1989
26274431525488638 ~1989
26274719525494398 ~1989
26275103525502078 ~1989
262751592627515919 ~1991
26275391525507838 ~1989
262756571576539439 ~1990
Exponent Prime Factor Digits Year
26277071525541438 ~1989
26277263525545278 ~1989
262777312102218499 ~1990
26277791525555838 ~1989
262780996306743779 ~1992
26278163525563278 ~1989
26278559525571198 ~1989
26278883525577678 ~1989
26279171525583438 ~1989
26279303525586078 ~1989
26279699525593998 ~1989
262799411576796479 ~1990
26280431525608638 ~1989
26280791525615838 ~1989
26281091525621838 ~1989
26281499525629998 ~1989
26281523525630478 ~1989
26281763525635278 ~1989
26281823525636478 ~1989
262818412102547299 ~1990
26282219525644398 ~1989
26282363525647278 ~1989
26282771525655438 ~1989
262828072102624579 ~1990
26282831525656638 ~1989
1560
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24-10-27