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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
173345572426837999 ~1990
17334623346692478 ~1988
17335141634466160710 ~1993
17336639346732798 ~1988
17336699346733998 ~1988
173376411040258479 ~1989
173381771040290639 ~1989
17338523346770478 ~1988
173385671733856719 ~1989
17339111346782238 ~1988
17339411346788238 ~1988
17339891346797838 ~1988
173400731040404399 ~1989
173408391387267139 ~1989
17341631346832638 ~1988
17341763346835278 ~1988
17341979346839598 ~1988
173420211040521279 ~1989
173421891387375139 ~1989
17342219346844398 ~1988
17342291346845838 ~1988
173425939365000239 ~1991
17342939346858798 ~1988
173436291387490339 ~1989
17343719346874398 ~1988
Exponent Prime Factor Digits Year
173438811387510499 ~1989
17343983346879678 ~1988
17344319346886398 ~1988
17344499346889998 ~1988
17344571346891438 ~1988
173451791734517919 ~1989
17345459346909198 ~1988
173455071387640579 ~1989
17345591346911838 ~1988
17345759346915198 ~1988
17346503346930078 ~1988
17346863346937278 ~1988
173469415551021139 ~1990
17347139346942798 ~1988
173477211040863279 ~1989
17347751346955038 ~1988
17348531346970638 ~1988
17348951346979038 ~1988
17349551346991038 ~1988
17350139347002798 ~1988
173503211041019279 ~1989
17350331347006638 ~1988
173503371041020239 ~1989
17350499347009998 ~1988
173505771041034639 ~1989
Exponent Prime Factor Digits Year
173510211388081699 ~1989
17351111347022238 ~1988
17351423347028478 ~1988
173519531041117199 ~1989
17351963347039278 ~1988
17352011347040238 ~1988
17352059347041198 ~1988
17352311347046238 ~1988
17352479347049598 ~1988
17352743347054878 ~1988
17353151347063038 ~1988
17353331347066638 ~1988
17353559347071198 ~1988
173540811041244879 ~1989
17354231347084638 ~1988
173548671388389379 ~1989
173549339371663839 ~1991
17355203347104078 ~1988
17355599347111998 ~1988
17355791347115838 ~1988
17356103347122078 ~1988
173562171041373039 ~1989
17356343347126878 ~1988
17356463347129278 ~1988
17357339347146798 ~1988
Exponent Prime Factor Digits Year
173578191388625539 ~1989
173578971388631779 ~1989
17358119347162398 ~1988
173583616943344419 ~1991
173585531041513199 ~1989
17358563347171278 ~1988
17358923347178478 ~1988
17358959347179198 ~1988
173595411041572479 ~1989
17359679347193598 ~1988
17359763347195278 ~1988
17359883347197678 ~1988
17359931347198638 ~1988
17360771347215438 ~1988
173615211041691279 ~1989
17361671347233438 ~1988
173621931041731599 ~1989
17362211347244238 ~1988
17363543347270878 ~1988
17363903347278078 ~1988
17365463388986371310 ~1993
17365703347314078 ~1988
173662333820571279 ~1990
17366291347325838 ~1988
173663171041979039 ~1989
1342
GIMPS The Prime Pages FactorDb.com
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25-07-08