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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
9956231199124638 ~1986
9956537597392238 ~1987
9956591199131838 ~1986
9956939199138798 ~1986
9957323199146478 ~1986
9957581796606498 ~1987
9957611199152238 ~1986
99576372987291119 ~1989
9957683199153678 ~1986
9957901597474078 ~1987
9958181597490878 ~1987
9958199199163998 ~1986
9958271199165438 ~1986
9958691199173838 ~1986
9959051199181038 ~1986
9959077597544638 ~1987
9959219199184398 ~1986
9959219796737538
9959231199184638 ~1986
9959533597571998 ~1987
9959633597577998 ~1987
9959879199197598 ~1986
9960059199201198 ~1986
9960143199202878 ~1986
9960187996018718 ~1987
Exponent Prime Factor Digits Year
9960239199204798 ~1986
99603372988101119 ~1989
9960347796827778 ~1987
9960371199207438 ~1986
9960719199214398 ~1986
9961421796913698 ~1987
99615171394612399 ~1988
9961739199234798 ~1986
99619373785536079 ~1989
9962047996204718 ~1987
9962053597723198 ~1987
9962063199241278 ~1986
9962321597739278 ~1987
9962339199246798 ~1986
9962411199248238 ~1986
9962417597745038 ~1987
9962437597746238 ~1987
9962591199251838 ~1986
9962801597768078 ~1987
9962857597771438 ~1987
9962891199257838 ~1986
9962951199259038 ~1986
9962999199259998 ~1986
9963341597800478 ~1987
99633832391211939 ~1988
Exponent Prime Factor Digits Year
9963727996372718 ~1987
9963797597827838 ~1987
9963839199276798 ~1986
9964181597850878 ~1987
9964343199286878 ~1986
9964403199288078 ~1986
9964561597873678 ~1987
9964931199298638 ~1986
9964939996493918 ~1987
9965093597905598 ~1987
99652272391654499 ~1988
9966251797300098 ~1987
9966263199325278 ~1986
9966533597991998 ~1987
99665871793985679 ~1988
9967031797362498 ~1987
99670812990124319 ~1989
9967147996714718 ~1987
99671591794088639 ~1988
9967439199348798 ~1986
9967597598055838 ~1987
9968243199364878 ~1986
99683813787984799 ~1989
9968411199368238 ~1986
9968501598110078 ~1987
Exponent Prime Factor Digits Year
9968713598122798 ~1987
9969059199381198 ~1986
9969313598158798 ~1987
9969577598174638 ~1987
9969581598174878 ~1987
99696372392712899 ~1988
9969893598193598 ~1987
9970273598216398 ~1987
9970463199409278 ~1986
9970703199414078 ~1986
9971033598261998 ~1987
9971147797691778 ~1987
9971147366938209710
9971411199428238 ~1986
9972029797762338 ~1987
99727792393466979 ~1988
9973079199461598 ~1986
9973331797866498 ~1987
9973811199476238 ~1986
99738771396342799 ~1988
9974339199486798 ~1986
9974351199487038 ~1986
9974771199495438 ~1986
9974977598498638 ~1987
9975263199505278 ~1986
1017
GIMPS The Prime Pages FactorDb.com
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25-06-01