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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
27860699557213998 ~1989
27860939557218798 ~1989
278614971671689839 ~1990
27861803557236078 ~1989
27862283557245678 ~1989
27862799557255998 ~1989
27862931557258638 ~1989
27863351557267038 ~1989
278634131671804799 ~1990
27863711557274238 ~1989
27863963557279278 ~1989
27864059557281198 ~1989
27864359557287198 ~1989
27864719557294398 ~1989
278651111003143996111 ~1995
278654212229233699 ~1991
27865619557312398 ~1989
27865823557316478 ~1989
27867431557348638 ~1989
27867839557356798 ~1989
278684872229478979 ~1991
27868931557378638 ~1989
27869339557386798 ~1989
278695811672174879 ~1990
27869819557396398 ~1989
Exponent Prime Factor Digits Year
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
27876731557534638 ~1989
27876983557539678 ~1989
27877103557542078 ~1989
Exponent Prime Factor Digits Year
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
27886643557732878 ~1989
27886739557734798 ~1989
27888863557777278 ~1989
Exponent Prime Factor Digits Year
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
27895643557912878 ~1989
27895943557918878 ~1989
27896903557938078 ~1989
27897143557942878 ~1989
27897431557948638 ~1989
27897599557951998 ~1989
27897839557956798 ~1989
27898151557963038 ~1989
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25-05-04