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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
31547591630951838 ~1990
315479331892875999 ~1991
31548983630979678 ~1990
315491811892950879 ~1991
31549439630988798 ~1990
31549691630993838 ~1990
31549751630995038 ~1990
31550063631001278 ~1990
31550339631006798 ~1990
31550471631009438 ~1990
31550723631014478 ~1990
31551203631024078 ~1990
31551671631033438 ~1990
31552919631058398 ~1990
31553183631063678 ~1990
31554899631097998 ~1990
31555031631100638 ~1990
31555211631104238 ~1990
31555319631106398 ~1990
31555631631112638 ~1990
31556243631124878 ~1990
31556303631126078 ~1990
31556771631135438 ~1990
31556939631138798 ~1990
31557479631149598 ~1990
Exponent Prime Factor Digits Year
31557671631153438 ~1990
31557731631154638 ~1990
31557791631155838 ~1990
315580131893480799 ~1991
31558223631164478 ~1990
31558283631165678 ~1990
31558463631169278 ~1990
31558619631172398 ~1990
315586336942899279 ~1992
31559219631184398 ~1990
31559639631192798 ~1990
31559831631196638 ~1990
31560239631204798 ~1990
31560251631205038 ~1990
31560299631205998 ~1990
315604331893625999 ~1991
31560863631217278 ~1990
31560911631218238 ~1990
31561199631223998 ~1990
31561391631227838 ~1990
315617115681107999 ~1992
31561823631236478 ~1990
31562137170435539910 ~1993
31563359631267198 ~1990
31563431631268638 ~1990
Exponent Prime Factor Digits Year
31563491631269838 ~1990
31564271631285438 ~1990
31564391631287838 ~1990
315649211893895279 ~1991
31564943631298878 ~1990
31565291631305838 ~1990
31566911631338238 ~1990
315675112525400899 ~1991
31567859631357198 ~1990
315691372525530979 ~1991
31569347915511063110 ~1995
315695997576703779 ~1992
31570151631403038 ~1990
31570223631404478 ~1990
31570499631409998 ~1990
31570843107340866310 ~1993
31570859631417198 ~1990
31571219631424398 ~1990
31571389170485500710 ~1993
31571399631427998 ~1990
31571591631431838 ~1990
315719934420079039 ~1992
31572371631447438 ~1990
31573523631470478 ~1990
31573819202072441710 ~1993
Exponent Prime Factor Digits Year
315740473157404719 ~1991
31574099631481998 ~1990
31574531631490638 ~1990
31574639631492798 ~1990
31575611631512238 ~1990
31575671631513438 ~1990
31575839631516798 ~1990
315758392526067139
31575899631517998 ~1990
31576283631525678 ~1990
315763731894582399 ~1991
31576439631528798 ~1990
31577291631545838 ~1990
31577471631549438 ~1990
315777172526217379 ~1991
31577783631555678 ~1990
31577951631559038 ~1990
31578023631560478 ~1990
31578191631563838 ~1990
31578251631565038 ~1990
31578611631572238 ~1990
31579139631582798 ~1990
315796192526369539 ~1991
31579739631594798 ~1990
31581419631628398 ~1990
1766
GIMPS The Prime Pages FactorDb.com
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25-04-13