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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
155083131016637 ~1979
155099931019997 ~1979
155103793062237 ~1981
1551113372267138 ~1982
155119131023837 ~1979
1551197372287298 ~1982
15512891116928099 ~1983
1551343372322338 ~1982
155138331027677 ~1979
1551757713808238 ~1983
1551791124143298 ~1981
155179393107597 ~1981
1551793372430338
155185393111197 ~1981
1551883155188318 ~1981
1551887279339678 ~1982
155189931037997 ~1979
1551911651802638 ~1983
155191793115037 ~1981
1552037372488898 ~1982
155207931041597 ~1979
1552079279374238
15522371459102799 ~1983
15522771955869039 ~1984
155233793140237 ~1981
Exp. Prime Factor Digits Year
1552403496768978 ~1982
155245131049037 ~1979
155251393150797 ~1981
1552567621026818 ~1983
155257131051437 ~1979
1552997217419598 ~1981
155301793181037 ~1981
155309931061997 ~1979
1553107155310718 ~1981
155315931063197 ~1979
1553177124254178 ~1981
1553291124263298 ~1981
1553329372798978 ~1982
1553329465998718
15533331118399779 ~1983
155342331068477 ~1979
1553437248549938 ~1982
1553507279631278 ~1982
1553803155380318 ~1981
155383793230237 ~1981
1553837466151118
1553887155388718 ~1981
1553927372942498 ~1982
155417393250397 ~1981
155419393251597 ~1981
Exp. Prime Factor Digits Year
155423393253997 ~1981
1554283621713218 ~1983
155435931087197 ~1979
1554401124352098 ~1981
155441931088397 ~1979
155446193267677 ~1981
155465931093197 ~1979
1554659279838638
1554733621893218 ~1983
15548214198016719 ~1985
155506193303677 ~1981
1555111155511118 ~1981
1555153622061218 ~1983
1555187124414978 ~1981
155519931103997 ~1979
1555231155523118 ~1981
155525931105197 ~1979
1555553466665918 ~1982
15555711244456819 ~1983
155564331112877 ~1979
155565793339437 ~1981
15557111493482579 ~1983
15557591773565279 ~1984
155600331120077 ~1979
1556003497920978
Exp. Prime Factor Digits Year
1556059280090638 ~1982
15560831400474719 ~1983
15562978964270739 ~1985
1556393871580098 ~1983
155641393384797 ~1981
1556441124515298 ~1981
155651931130397 ~1979
1556519498086098
155657393394397 ~1981
1556609466982718 ~1982
1556641249062578 ~1982
1556671155667118 ~1981
1556773373625538 ~1982
155688193412877 ~1981
155696331139277 ~1979
1557029467108718 ~1982
155723931144797 ~1979
1557247155724718 ~1981
1557343155734318 ~1981
155735931147197 ~1979
155737131147437 ~1979
1557377591803278 ~1982
1557403373776738 ~1982
1557427529525198 ~1982
1557499654149598 ~1983
331
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25-10-26