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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
688951191377902399 ~1992
688968231377936479 ~1992
688969311377938639 ~1992
688997391377994799 ~1992
689030534134183199 ~1993
689049595512396739 ~1994
689050191378100399 ~1992
689061111378122239 ~1992
68909927179165810310 ~1995
689102511378205039 ~1992
689112111378224239 ~1992
689120031378240079 ~1992
689126631378253279 ~1992
689140614134843679 ~1993
689148231378296479 ~1992
689155934134935599 ~1993
689156171033734255111 ~1997
689172411212943441711 ~1997
689173191378346399 ~1992
689185791378371599 ~1992
689206795513654339 ~1994
689207391378414799 ~1992
689210031378420079 ~1992
689211591378423199 ~1992
689215911006255228711 ~1997
Exponent Prime Factor Digits Year
689227791378455599 ~1992
689247111378494239 ~1992
68926327110282123310 ~1994
689280711378561439 ~1992
689286831378573679 ~1992
689289711378579439 ~1992
689300631378601279 ~1992
689305311378610639 ~1992
68931089261938138310 ~1995
689330214135981279 ~1993
689334111378668239 ~1992
68934997206804991110 ~1995
689387031378774079 ~1992
689425191378850399 ~1992
689430711378861439 ~1992
689431311378862639 ~1992
689438511378877039 ~1992
689444391378888799 ~1992
68948041110316865710 ~1994
68948647110317835310 ~1994
689499111378998239 ~1992
689499711378999439 ~1992
689509191379018399 ~1992
689512574137075439 ~1993
689532591379065199 ~1992
Exponent Prime Factor Digits Year
689537631379075279 ~1992
689539911379079839 ~1992
689557015516456099 ~1994
689567031379134079 ~1992
689582511379165039 ~1992
689624991379249999 ~1992
689699631379399279 ~1992
689706591379413199 ~1992
689709831379419679 ~1992
68973637110357819310 ~1994
689743191379486399 ~1992
689745174138471039 ~1993
689758572096866052911 ~1998
689769831379539679 ~1992
689774511379549039 ~1992
689789631379579279 ~1992
689794191379588399 ~1992
689797311379594639 ~1992
689804511379609039 ~1992
689831631379663279 ~1992
689848734139092399 ~1993
689854191379708399 ~1992
689854431379708879 ~1992
689865715518925699 ~1994
689870631379741279 ~1992
Exponent Prime Factor Digits Year
689874591379749199 ~1992
689875191379750399 ~1992
689885991379771999 ~1992
689912395519299139 ~1994
689919591379839199 ~1992
689941191379882399 ~1992
689943711379887439 ~1992
68995279165588669710 ~1995
689964796899647919 ~1994
689974191379948399 ~1992
689981511379963039 ~1992
689982711379965439 ~1992
690004431380008879 ~1992
690010431380020879 ~1992
690011511380023039 ~1992
690014631380029279 ~1992
690041574140249439 ~1993
69005033165612079310 ~1995
690050631380101279 ~1992
69007427124213368710 ~1995
690076191380152399 ~1992
690080391380160799 ~1992
690092031380184079 ~1992
690094675520757379 ~1994
690120595520964739 ~1994
2249
GIMPS The Prime Pages FactorDb.com
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25-06-08