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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
1805483577754578 ~1983
1805537108332238 ~1981
1805561144444898 ~1981
1805641108338478 ~1981
180565136113037 ~1980
1805819325047438 ~1982
1805821830677678 ~1983
180601136120237 ~1980
180602336120477 ~1980
1806191144495298 ~1981
1806221144497698 ~1981
180625136125037 ~1980
1806373289019698 ~1982
1806383469659598 ~1983
1806461108387678 ~1981
1806461541938318
18064792745848099 ~1984
1806491144519298 ~1981
1806491325168398
18064992023278899 ~1984
1806557108393438 ~1981
1806557144524578
1806697108401838 ~1981
1806797108407838 ~1981
180680336136077 ~1980
Exp. Prime Factor Digits Year
1806859180685918 ~1982
1806971144557698 ~1981
1807063180706318 ~1982
1807237108434238 ~1981
180739136147837 ~1980
1807397253035598 ~1982
1807499144599938 ~1981
1807511578403538 ~1983
1807693108461598 ~1981
18076971410003679 ~1984
1807723180772318 ~1982
1807781578489938 ~1983
1807829253096078 ~1982
1807853253099438 ~1982
1807969723187618 ~1983
180800336160077 ~1980
180803936160797 ~1980
1808039144643138
1808071289291378 ~1982
1808077108484638 ~1981
1808117687084478 ~1983
1808297687152878 ~1983
1808453253183438 ~1982
1808479180847918 ~1982
1808549253196878 ~1982
Exp. Prime Factor Digits Year
1808581289372978 ~1982
1808813108528798 ~1981
1808831144706498 ~1981
180884336176877 ~1980
18088692568593999 ~1984
180895136179037 ~1980
1809373289499698 ~1982
1809403723761218 ~1983
18094192750316899 ~1984
1809461868541298 ~1983
180955136191037 ~1980
1809551325719198
1809553434292738 ~1982
1809631180963118 ~1982
1809853108591198 ~1981
1809911760162638 ~1983
1810001144800098 ~1981
1810097108605838 ~1981
181028336205677 ~1980
1810397144831778 ~1981
1810397687950878
1810423434501538 ~1982
181043936208797 ~1980
1810747181074718 ~1982
1810979144878338 ~1981
Exp. Prime Factor Digits Year
1810981108658878 ~1981
1811083434659938 ~1983
181121936224397 ~1980
181129136225837 ~1980
1811323181132318 ~1982
1811413108684798 ~1981
18114313224347199 ~1985
1811443289830898 ~1982
1811473108688398 ~1981
1811567144925378 ~1981
1811657253631998 ~1982
1811683103265931110 ~1986
18117236522202819 ~1985
1811737108704238 ~1981
181175936235197 ~1980
181181936236397 ~1980
1812137253699198 ~1982
1812383434971938 ~1983
18123832609831539
1812403181240318 ~1982
18124572138699279 ~1984
1812541108752478 ~1981
181268336253677 ~1980
1812869145029538 ~1981
1812989145039138 ~1981
365
GIMPS The Prime Pages FactorDb.com
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25-10-26