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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
7488419149768398 ~1985
7488499748849918 ~1986
7488671149773438 ~1985
7488683149773678 ~1985
7488739748873918 ~1986
7488779149775598 ~1985
7488863149777278 ~1985
7489051748905118 ~1986
7489067599125378 ~1986
7489241449354478 ~1986
7489253449355198 ~1986
7489523149790478 ~1985
74895291048534079 ~1987
7489561449373678 ~1986
7489787599182978 ~1986
7489957449397438 ~1986
74899811647795839 ~1987
74904115393095939 ~1989
7490491749049118 ~1986
7490551749055118 ~1986
7490737449444238 ~1986
74907671348338079 ~1987
7490771149815438 ~1985
7490783149815678 ~1985
7490831149816638 ~1985
Exp. Prime Factor Digits Year
7491221449473278 ~1986
7491641599331298 ~1986
74921031798104739 ~1987
7492861449571678 ~1986
7492921449575278 ~1986
7493099149861998 ~1985
7493399599471938 ~1986
7493471149869438 ~1985
7493777449626638 ~1986
7493879149877598 ~1985
7494119599529538 ~1986
7494719599577538 ~1986
74947431798738339 ~1987
74948712997948419 ~1988
74949171049288399 ~1987
7495247599619778 ~1986
7495511149910238 ~1985
7495703149914078 ~1985
74961432548688639 ~1988
7496189599695138 ~1986
7496519149930398 ~1985
7496537449792238 ~1986
7496579149931598 ~1985
7496651599732098 ~1986
7496843149936878 ~1985
Exp. Prime Factor Digits Year
7496899749689918 ~1986
7497023149940478 ~1985
7497107599768578 ~1986
7497439749743918 ~1986
7498019149960398 ~1985
74980313749015519 ~1988
7498033449881998 ~1986
74981114348904399 ~1988
7498301449898078 ~1986
74983131049763839 ~1987
74984291799622979 ~1987
7498583149971678 ~1985
7498643149972878 ~1985
7498703149974078 ~1985
7498831749883118 ~1986
7498871149977438 ~1985
7499161449949678 ~1986
74992071349857279 ~1987
7499231149984638 ~1985
7499257449955438 ~1986
74995371799888899 ~1987
7499543149990878 ~1985
7499651599972098 ~1986
7499741599979298 ~1986
7499819149996398 ~1985
Exp. Prime Factor Digits Year
7500203150004078 ~1985
7500797600063778 ~1986
7500803150016078 ~1985
7500881450052878 ~1986
75009171050128399 ~1987
7501031150020638 ~1985
7501211150024238 ~1985
75013391350241039 ~1987
7501801450108078 ~1986
7501859150037198 ~1985
7501961600156898 ~1986
7501993450119598 ~1986
7502003150040078 ~1985
7502171600173698 ~1986
7502177450130638 ~1986
7502189600175138 ~1986
75021891050306479
7502413450144798 ~1986
75024311350437599 ~1987
7502639150052798 ~1985
7502711150054238 ~1985
7502717450163038 ~1986
75028193601353139 ~1988
7502863750286318 ~1986
75031091650683999 ~1987
910
GIMPS The Prime Pages FactorDb.com
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26-07-05