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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
28402943568058878 ~1989
284031172272249379 ~1991
28403363568067278 ~1989
28403681272675337710 ~1993
28403783568075678 ~1989
28404023568080478 ~1989
28404119568082398 ~1989
28404143568082878 ~1989
28404251568085038 ~1989
28404479568089598 ~1989
28405523568110478 ~1989
284056792272454339 ~1991
28405739568114798 ~1989
28405859568117198 ~1989
284065199090086099 ~1992
28406723568134478 ~1989
28406831568136638 ~1989
28407499710187475110 ~1994
28407539568150798 ~1989
28407719568154398 ~1989
28408031568160638 ~1989
28408199568163998 ~1989
28408379568167598 ~1989
284096992272775939 ~1991
284098334545573299 ~1991
Exponent Prime Factor Digits Year
28409939568198798 ~1989
28410131568202638 ~1989
284101571704609439 ~1990
28410743568214878 ~1989
28410839568216798 ~1989
28410937153419059910 ~1993
28411151568223038 ~1989
28411499568229998 ~1989
284118075114125279 ~1992
28411939113647756110 ~1992
28411991568239838 ~1989
28412123568242478 ~1989
28412963568259278 ~1989
284132232841322319 ~1991
28413491568269838 ~1989
28413551568271038 ~1989
28413611568272238 ~1989
28414559568291198 ~1989
284145592273164739
28414643568292878 ~1989
28414703568294078 ~1989
28415063568301278 ~1989
28417043568340878 ~1989
284170879661809599 ~1992
28418111568362238 ~1989
Exponent Prime Factor Digits Year
28418171568363438 ~1989
284182331705093999 ~1990
28418641113674564110 ~1992
28419551568391038 ~1989
284202011705212079 ~1990
284204296252494399 ~1992
28420849204630112910 ~1993
28420883568417678 ~1989
284211674547386739 ~1991
28421231568424638 ~1989
28421411568428238 ~1989
28421639568432798 ~1989
28422323568446478 ~1989
28422599568451998 ~1989
28422671568453438 ~1989
28422683568453678 ~1989
28422743568454878 ~1989
28422851568457038 ~1989
284231392273851139 ~1991
28423151568463038 ~1989
284233973979275599 ~1991
28423859568477198 ~1989
284243093979403279 ~1991
28424471568489438 ~1989
28424723568494478 ~1989
Exponent Prime Factor Digits Year
28425179568503598 ~1989
28425431568508638 ~1989
28425563568511278 ~1989
28425851568517038 ~1989
28425863568517278 ~1989
28426309341115708110 ~1994
28426691568533838 ~1989
28426991568539838 ~1989
284270234548323699 ~1991
28427219568544398 ~1989
28427783568555678 ~1989
28428143568562878 ~1989
28428863568577278 ~1989
28428923568578478 ~1989
284291534548664499 ~1991
28429451568589038 ~1989
28429463568589278 ~1989
28430183568603678 ~1989
28430399568607998 ~1989
28430639568612798 ~1989
28430663568613278 ~1989
284314371705886239 ~1990
28431659568633198 ~1989
28431911568638238 ~1989
28431971568639438 ~1989
1782
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26-04-05