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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
17989992338698719 ~1984
1799117107947038 ~1981
1799177143934178 ~1981
1799393575805778 ~1983
179963935992797 ~1980
1799753251965438 ~1982
1799801107988078 ~1981
1799983179998318 ~1982
1800017144001378 ~1981
1800137144010978 ~1981
180019136003837 ~1980
1800259432062178 ~1982
18002591044150239
1800499180049918 ~1982
1800541288086578 ~1982
1800677864324978 ~1983
180073136014637 ~1980
180080336016077 ~1980
1801229144098338 ~1981
1801237288197938 ~1982
1801361144108898 ~1981
18016191765586639 ~1984
1801777108106638 ~1981
1801873396412078 ~1982
1801907324343278 ~1982
Exp. Prime Factor Digits Year
1801997432479298 ~1982
1802261108135678 ~1981
18022793027828739 ~1985
1802363901181518 ~1983
1802393108143598 ~1981
1802609576834898 ~1983
1802737432656898 ~1982
1803097108185838 ~1981
18032992596750579 ~1984
180338336067677 ~1980
1803497144279778 ~1981
1803523180352318 ~1982
180355136071037 ~1980
1803577108214638 ~1981
18036671731520339 ~1984
1803743432898338 ~1982
180386336077277 ~1980
1804037252565198 ~1982
1804133252578638 ~1982
1804381108262878 ~1981
180439136087837 ~1980
1804391324790398
180440336088077 ~1980
1804613108276798 ~1981
18046872490468079 ~1984
Exp. Prime Factor Digits Year
1804709144376738 ~1981
1804711866261298 ~1983
180487136097437 ~1980
1804951288792178 ~1982
1804991758096238 ~1983
1805039144403138 ~1981
1805087144406978 ~1981
1805087433220898
1805261144420898 ~1981
18052994513247519 ~1985
1805483577754578 ~1983
1805537108332238 ~1981
1805561144444898 ~1981
1805641108338478 ~1981
180565136113037 ~1980
1805819325047438 ~1982
1805821722328418 ~1983
1805821830677678
180601136120237 ~1980
180602336120477 ~1980
1806191144495298 ~1981
1806221144497698 ~1981
18062232348089919 ~1984
180625136125037 ~1980
1806373289019698 ~1982
Exp. Prime Factor Digits Year
1806383469659598 ~1983
1806461108387678 ~1981
1806461541938318
18064792745848099 ~1984
1806491144519298 ~1981
1806491325168398
18064992023278899 ~1984
1806557108393438 ~1981
1806557144524578
1806697108401838 ~1981
1806797108407838 ~1981
180680336136077 ~1980
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
366
GIMPS The Prime Pages FactorDb.com
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25-12-14