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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
21384791427695838 ~1988
21385103427702078 ~1988
21385139427702798 ~1988
21385163427703278 ~1988
213852073421633139 ~1990
213857571710860579 ~1990
21385823427716478 ~1988
21386147192475323110 ~1992
213862191710897539 ~1990
21386279427725598 ~1988
21386471427729438 ~1988
213865011283190079 ~1989
21386531427730638 ~1988
21387059427741198 ~1988
213884391711075139 ~1990
21388751427775038 ~1988
21388883427777678 ~1988
213895038983591279 ~1991
21389831427796638 ~1988
21390251427805038 ~1988
213904971711239779 ~1990
21390503427810078 ~1988
213906171711249379 ~1990
21391211427824238 ~1988
21391871427837438 ~1988
Exponent Prime Factor Digits Year
213919195134060579 ~1991
213919498128940639 ~1991
21392099427841998 ~1988
21392159427843198 ~1988
213922211283533279 ~1989
21392411427848238 ~1988
213924677273438799 ~1991
213926038984893279 ~1991
21392711427854238 ~1988
213929712139297119 ~1990
21393083427861678 ~1988
21393299427865998 ~1988
213934334706555279 ~1991
213935571711484579 ~1990
21394679427893598 ~1988
21395063427901278 ~1988
21395219427904398 ~1988
21395303427906078 ~1988
213955931283735599 ~1989
21395603427912078 ~1988
21395723427914478 ~1988
21395831427916638 ~1988
213961191711689539 ~1990
213962692995477679 ~1990
213964931283789599 ~1989
Exponent Prime Factor Digits Year
213964972995509599 ~1990
21396503427930078 ~1988
21397283427945678 ~1988
21397919427958398 ~1988
21398519427970398 ~1988
213987532580689611911 ~1995
21398999427979998 ~1988
21399011427980238 ~1988
21399239427984798 ~1988
21399299427985998 ~1988
21399551427991038 ~1988
21400103428002078 ~1988
21400163428003278 ~1988
21400343428006878 ~1988
21400451428009038 ~1988
21400523428010478 ~1988
21400919428018398 ~1988
214017011284102079 ~1989
21402119428042398 ~1988
21402383428047678 ~1988
214025872106014560911 ~1995
214031113852559999 ~1991
21403199428063998 ~1988
21403439428068798 ~1988
21403559428071198 ~1988
Exponent Prime Factor Digits Year
21403643428072878 ~1988
21404063428081278 ~1988
214044131284264799 ~1989
21404843428096878 ~1988
214051211284307279 ~1989
214052531284315199 ~1989
21405383428107678 ~1988
21405491428109838 ~1988
21405803428116078 ~1988
21406271428125438 ~1988
21406499428129998 ~1988
214065312140653119 ~1990
214071731284430399 ~1989
21407363428147278 ~1988
21407531428150638 ~1988
214076713425227379 ~1990
214076771284460639 ~1989
21407783428155678 ~1988
21407999428159998 ~1988
21408029359654887310 ~1993
21408479428169598 ~1988
21408659428173198 ~1988
21408851428177038 ~1988
21408983428179678 ~1988
214091516850928339 ~1991
1460
GIMPS The Prime Pages FactorDb.com
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25-04-13