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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
3807449304595938 ~1984
3807449533042878
380749176149837 ~1982
380753976150797 ~1982
38075932132252099 ~1986
3807737304618978 ~1984
3807757609241138 ~1985
3807941228476478 ~1984
3808397914015298 ~1985
3808591685546398 ~1985
380875176175037 ~1982
3808801228528078 ~1984
3808967914152098 ~1985
380897976179597 ~1982
380905176181037 ~1982
3809137228548238 ~1984
380915976183197 ~1982
380933976186797 ~1982
3809461228567678 ~1984
38095031523801219 ~1986
3809591304767298 ~1984
3809639304771138 ~1984
3809753228585198 ~1984
3809857228591438 ~1984
380989176197837 ~1982
Exp. Prime Factor Digits Year
3809917228595038 ~1984
3809941228596478 ~1984
3809941838187038
381007176201437 ~1982
381008376201677 ~1982
3810097228605838 ~1984
3810409838289998 ~1985
38104091524163619
3810413228624798 ~1984
381041976208397 ~1982
38104971829038579 ~1986
3810511609681778 ~1985
3810553228633198 ~1984
38105631600436479 ~1986
3810643609702898 ~1985
3810733228643998 ~1984
381089976217997 ~1982
3811217228673038 ~1984
3811289533580478 ~1984
381133176226637 ~1982
38116271524650819 ~1986
3811657228699438 ~1984
38116811524672419 ~1986
3811771609883378 ~1985
3811949304955938 ~1984
Exp. Prime Factor Digits Year
3812191381219118 ~1984
381221976244397 ~1982
3812309304984738 ~1984
3812357914965698 ~1985
38125691525027619 ~1986
381284376256877 ~1982
3813391381339118 ~1984
3813419686415438 ~1985
3813427686416878 ~1985
381359976271997 ~1982
381361176272237 ~1982
3813893228833598 ~1984
3813941228836478 ~1984
38139832746067779 ~1986
3814081228844878 ~1984
381409176281837 ~1982
3814093228845598 ~1984
3814121305129698 ~1984
38143191602013999 ~1986
381440376288077 ~1982
3814553915492738 ~1985
381493176298637 ~1982
3814981610396978 ~1985
3815081305206498 ~1984
381524376304877 ~1982
Exp. Prime Factor Digits Year
381530376306077 ~1982
3815351305228098 ~1984
3815521228931278 ~1984
3815579305246338 ~1984
381563976312797 ~1982
38156811144704319 ~1985
3815761228945678 ~1984
381589176317837 ~1982
3816107915865698 ~1985
3816149305291938 ~1984
3816167305293378 ~1984
3816277228976638 ~1984
38164976640704799 ~1987
3816557305324578 ~1984
3816677305334178 ~1984
38166791297670879 ~1985
3816691687004398 ~1985
38171112213924399 ~1986
3817193229031598 ~1984
381725976345197 ~1982
3817393229043598 ~1984
3817753229065198 ~1984
38177571145327119 ~1985
38178591908929519 ~1986
38178597406646479
600
GIMPS The Prime Pages FactorDb.com
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26-05-03