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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.
Exp. Prime Factor Digits Year
6486899145306537710 ~1989
6486929518954338 ~1986
6486929908170078
6487001389220078 ~1985
6487301518984098 ~1986
6487751129755038 ~1984
6487763129755278 ~1984
6487919519033538 ~1986
6487991129759838 ~1984
6488137389288238 ~1985
6488333389299998 ~1985
64887671038202739 ~1986
6488939129778798 ~1984
6488971648897118 ~1986
6489293389357598 ~1985
6489491129789838 ~1984
6489551129791038 ~1984
6489863129797278 ~1984
6490031519202498 ~1986
6490313389418798 ~1985
6490391129807838 ~1984
6491189908766478 ~1986
64913338698386239 ~1989
64913776101894399 ~1988
6491417519313378 ~1986
Exp. Prime Factor Digits Year
6491477389488638 ~1985
6491759129835198 ~1984
6491867519349378 ~1986
6492383129847678 ~1984
6492449519395938 ~1986
6492611129852238 ~1984
6492677389560638 ~1985
6493139129862798 ~1984
6493261389595678 ~1985
6493493389609598 ~1985
6493493190908694310
6493819649381918 ~1986
6493909112994016710 ~1989
6494177389650638 ~1985
6494273909198238 ~1986
6494339519547138 ~1986
6494417389665038 ~1985
6494821389689278 ~1985
6494921389695278 ~1985
6495011519600898 ~1986
6495079649507918 ~1986
6495323129906478 ~1984
6495563129911278 ~1984
64956671169220079 ~1987
6495737519658978 ~1986
Exp. Prime Factor Digits Year
64959434677078979 ~1988
6496079129921598 ~1984
6496109909455278 ~1986
64961231559069539 ~1987
6496151129923038 ~1984
6496211129924238 ~1984
64962791559106979 ~1987
6496333389779998 ~1985
6496361519708898 ~1986
64964873248243519 ~1988
6496559129931198 ~1984
6496631129932638 ~1984
6496747649674718 ~1986
6496799129935998 ~1984
6496859129937198 ~1984
6496943129938878 ~1984
6497083649708318 ~1986
64973471169522479 ~1987
64974971039599539 ~1986
6497831129956638 ~1984
6497831519826498
64978516237936979 ~1988
6497917389875038 ~1985
6498307649830718 ~1986
6498419129968398 ~1984
Exp. Prime Factor Digits Year
6498497519879778 ~1986
6498671129973438 ~1984
6498839129976798 ~1984
6498923129978478 ~1984
6499169519933538 ~1986
64991831039869299 ~1986
6499217519937378 ~1986
6499331129986638 ~1984
6499357389961438 ~1985
6499379129987598 ~1984
6499631129992638 ~1984
64997094029819599 ~1988
6499859129997198 ~1984
6499897389993838 ~1985
6499991129999838 ~1984
6500183130003678 ~1984
6500281390016878 ~1985
6500339130006798 ~1984
6500519520041538 ~1986
6500633390037998 ~1985
6500771130015438 ~1984
65008076240774739 ~1988
6500981520078498 ~1986
65010732600429219 ~1987
6501217390073038 ~1985
839
GIMPS The Prime Pages FactorDb.com
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26-08-02