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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
27869339557386798 ~1989
278695811672174879 ~1990
27869819557396398 ~1989
27870179557403598 ~1989
27870239557404798 ~1989
27870371557407438 ~1989
27870383557407678 ~1989
278703912787039119 ~1991
27870443557408878 ~1989
27870851557417038 ~1989
27870863557417278 ~1989
27871391557427838 ~1989
27871643557432878 ~1989
27871979557439598 ~1989
27872459557449198 ~1989
27872651557453038 ~1989
278729092229832739 ~1991
27873011557460238 ~1989
27874391557487838 ~1989
278749272787492719 ~1991
27875579557511598 ~1989
278761136690267139 ~1992
278761811672570879 ~1990
278763771672582639 ~1990
27876419557528398 ~1989
Exponent Prime Factor Digits Year
27876731557534638 ~1989
27876983557539678 ~1989
27877103557542078 ~1989
278774712787747119 ~1991
27877763557555278 ~1989
27877799557555998 ~1989
278778672787786719 ~1991
27878423557568478 ~1989
27878843557576878 ~1989
27879011557580238 ~1989
27879191557583838 ~1989
27879443557588878 ~1989
27879899557597998 ~1989
27880511557610238 ~1989
27882191557643838 ~1989
27882479557649598 ~1989
27882539557650798 ~1989
27883871557677438 ~1989
278842371673054239 ~1990
27884459557689198 ~1989
278845811673074879 ~1990
27884711557694238 ~1989
27884999557699998 ~1989
278859472230875779 ~1991
27886343557726878 ~1989
Exponent Prime Factor Digits Year
27886643557732878 ~1989
27886739557734798 ~1989
27888863557777278 ~1989
27889523557790478 ~1989
27889943557798878 ~1989
27890339557806798 ~1989
27890399557807998 ~1989
27890771557815438 ~1989
27891119557822398 ~1989
27891239557824798 ~1989
27892379557847598 ~1989
27892619557852398 ~1989
27893291557865838 ~1989
27893303557866078 ~1989
27893543557870878 ~1989
27893639557872798 ~1989
27894011557880238 ~1989
27894131557882638 ~1989
278946971673681839 ~1990
27894803557896078 ~1989
278953211673719279 ~1990
27895643557912878 ~1989
27895943557918878 ~1989
27896903557938078 ~1989
27897143557942878 ~1989
Exponent Prime Factor Digits Year
27897431557948638 ~1989
27897599557951998 ~1989
27897839557956798 ~1989
27898151557963038 ~1989
27898463557969278 ~1989
27898571557971438 ~1989
27898823557976478 ~1989
278998632789986319 ~1991
27900011558000238 ~1989
27900443558008878 ~1989
27900599558011998 ~1989
27901151558023038 ~1989
279017872232142979 ~1991
27902111558042238 ~1989
27902579558051598 ~1989
27902603558052078 ~1989
27902723558054478 ~1989
27903119558062398 ~1989
27903251558065038 ~1989
27903719558074398 ~1989
27903971558079438 ~1989
27904043558080878 ~1989
27904223558084478 ~1989
279045371674272239 ~1990
27904631558092638 ~1989
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25-11-17