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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
9472511189450238 ~1985
9472643189452878 ~1985
9472657568359438 ~1987
9472691189453838 ~1985
9472979189459598 ~1985
9472979757838338
9473293568397598 ~1987
9473411757872898 ~1987
9473543189470878 ~1985
9473771189475438 ~1985
94740533031696979 ~1988
9474323189486478 ~1985
9474373568462398 ~1987
94746291326448079 ~1988
9474653568479198 ~1987
9474841568490478 ~1987
9474953568497198 ~1987
9475019189500398 ~1985
9475121568507278 ~1987
9475139189502798 ~1985
9475283189505678 ~1985
9475391189507838 ~1985
9475463189509278 ~1985
9475871189517438 ~1985
9475943189518878 ~1985
Exp. Prime Factor Digits Year
9475997568559838 ~1987
94761432274274339 ~1988
9476399189527998 ~1985
9476543189530878 ~1985
9476711189534238 ~1985
9476717568603038 ~1987
9476723189534478 ~1985
9476891189537838 ~1985
9477053568623198 ~1987
9477073568624398 ~1987
94771991705895839 ~1988
94777491326884879 ~1988
9477781568666878 ~1987
9477791189555838 ~1985
9477911758232898 ~1987
9478211189564238 ~1985
9478559189571198 ~1985
94785974549726579 ~1989
9478883189577678 ~1985
94789911706218399 ~1988
9479287947928718 ~1987
9479819189596398 ~1985
9479843189596878 ~1985
9480181568810878 ~1987
9480277568816638 ~1987
Exp. Prime Factor Digits Year
9480397568823838 ~1987
9480479189609598 ~1985
94804793033753299
9480517568831038 ~1987
9480539189610798 ~1985
9480923189618478 ~1985
9481061568863678 ~1987
9481217758497378 ~1987
9481331189626638 ~1985
94814871706667679 ~1988
9481523189630478 ~1985
9481603948160318 ~1987
9481673568900398 ~1987
9481711948171118 ~1987
94817111517073779
9481963948196318 ~1987
94821132086064879 ~1988
9482353568941198 ~1987
9482381568942878 ~1987
9482411189648238 ~1985
9482717568963038 ~1987
9482777568966638 ~1987
9482783189655678 ~1985
94830371517285939 ~1988
9483863189677278 ~1985
Exp. Prime Factor Digits Year
9484523189690478 ~1985
9484597569075838 ~1987
9484823189696478 ~1985
9484883189697678 ~1985
9485041569102478 ~1987
9485111189702238 ~1985
9485129758810338 ~1987
9485159189703198 ~1985
9485261758820898 ~1987
9485279189705598 ~1985
9485341569120478 ~1987
9485501569130078 ~1987
9485513569130798 ~1987
9485713569142798 ~1987
9485803948580318 ~1987
94859335881278479 ~1989
9486481569188878 ~1987
94864871707567679 ~1988
94864971328109599 ~1988
9486977569218638 ~1987
9487001569220078 ~1987
9487319189746398 ~1985
9487781569266878 ~1987
9488093569285598 ~1987
9488471189769438 ~1985
981
GIMPS The Prime Pages FactorDb.com
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25-04-13