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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
269759596474230179 ~1992
26976023539520478 ~1989
26976359539527198 ~1989
26976487107905948110 ~1992
26977523539550478 ~1989
26977679539553598 ~1989
269779811618678879 ~1990
26978543539570878 ~1989
269786211618717279 ~1990
26979311539586238 ~1989
26979383539587678 ~1989
26979539539590798 ~1989
26979779539595598 ~1989
26979899539597998 ~1989
269802236475253539 ~1992
26980463539609278 ~1989
269808434316934899 ~1991
26981543539630878 ~1989
26981651539633038 ~1989
269817892158543139 ~1991
26982359539647198 ~1989
26982419539648398 ~1989
26982563539651278 ~1989
26983091539661838 ~1989
26983259539665198 ~1989
Exponent Prime Factor Digits Year
26983571539671438 ~1989
26983823539676478 ~1989
26984591539691838 ~1989
26984939539698798 ~1989
26985659539713198 ~1989
269857312158858499 ~1991
26985743539714878 ~1989
269858093778013279 ~1991
26986331539726638 ~1989
26986969949941308910 ~1995
269871411619228479 ~1990
269875371619252239 ~1990
269875676477016099 ~1992
26988191539763838 ~1989
26989199539783998 ~1989
26989559539791198 ~1989
269902192159217539 ~1991
269902971619417839 ~1990
26990531539810638 ~1989
26990699539813998 ~1989
26991203539824078 ~1989
26991383539827678 ~1989
269915571619493439 ~1990
26991623539832478 ~1989
26992079539841598 ~1989
Exponent Prime Factor Digits Year
26992571539851438 ~1989
269933531619601199 ~1990
26994491539889838 ~1989
26994659539893198 ~1989
26995043539900878 ~1989
26995211539904238 ~1989
269958792699587919 ~1991
26996003539920078 ~1989
26996279539925598 ~1989
26996363539927278 ~1989
26996759539935198 ~1989
269972112699721119 ~1991
26997671539953438 ~1989
26997863539957278 ~1989
26997923539958478 ~1989
26998201107992804110 ~1992
269988771619932639 ~1990
26999411539988238 ~1989
269995972159967779 ~1991
26999939539998798 ~1989
27000191540003838 ~1989
27000299540005998 ~1989
27000563540011278 ~1989
270005994860107839 ~1991
270007618640243539 ~1992
Exponent Prime Factor Digits Year
27001019631823844710 ~1994
27001043540020878 ~1989
27002399540047998 ~1989
270025131620150799 ~1990
270029812160238499 ~1991
270030293780424079 ~1991
27003059540061198 ~1989
270031312160250499 ~1991
27003143540062878 ~1989
27003719540074398 ~1989
27004079540081598 ~1989
27004223540084478 ~1989
27004511540090238 ~1989
27004739540094798 ~1989
27004811540096238 ~1989
270049514320792179 ~1991
270049972160399779 ~1991
27005651540113038 ~1989
27005831540116638 ~1989
27005903540118078 ~1989
27005939540118798 ~1989
27006299540125998 ~1989
27006431540128638 ~1989
27006443540128878 ~1989
27006851540137038 ~1989
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25-11-17