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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
1925191924091698 ~1983
1925257308041138 ~1982
19252992656912639 ~1985
1925333115519998 ~1981
1925389423585598 ~1983
19253893696746899
1925393462094338 ~1983
1925501154040098 ~1982
192553138510637 ~1980
1925579154046338 ~1982
192563938512797 ~1980
192571138514237 ~1980
1925837577751118 ~1983
1925857115551438 ~1981
1926161115569678 ~1981
1926359346744638 ~1982
1926521115591278 ~1981
1926571346782798 ~1982
192662338532477 ~1980
1926721115603278 ~1981
1926739655091278 ~1983
192679138535837 ~1980
1926811192681118 ~1982
1926851924888498 ~1983
192686338537277 ~1980
Exp. Prime Factor Digits Year
1926893115613598 ~1981
1926973115618398 ~1981
192703138540637 ~1980
1927157154172578 ~1982
1927313115638798 ~1981
1927351192735118 ~1982
1927357115641438 ~1981
1927357308377138
1927421732419998 ~1983
1927553269857438 ~1982
1927567308410738 ~1982
192757138551437 ~1980
1927573308411698 ~1982
192761938552397 ~1980
1927691154215298 ~1982
1927691616861138
19276911850583379
1927753115665198 ~1981
192782338556477 ~1980
1927867192786718 ~1982
1927897115673838 ~1981
1927963655507438 ~1983
1927967347034078 ~1982
1928093115685598 ~1981
1928093269933038
Exp. Prime Factor Digits Year
192809938561997 ~1980
192818338563677 ~1980
192835138567037 ~1980
1928359347104638 ~1982
19283711388427139 ~1984
1928401115704078 ~1981
192841138568237 ~1980
1928467347124078 ~1982
1928489269988478 ~1982
1928621115717278 ~1981
1928741154299298 ~1982
1928791308606578 ~1982
192883138576637 ~1980
19290433125049679 ~1985
1929047501552238 ~1983
192907138581437 ~1980
1929163308666098 ~1982
192950338590077 ~1980
1929509154360738 ~1982
1929527154362178 ~1982
192956338591277 ~1980
1929569270139678 ~1982
1929589578876718 ~1983
1929671154373698 ~1982
1929793115787598 ~1981
Exp. Prime Factor Digits Year
1929877115792638 ~1981
192992338598477 ~1980
1930301115818078 ~1981
1930417115825038 ~1981
1930433270260638 ~1982
193045138609037 ~1980
19305534169994499 ~1985
193058338611677 ~1980
1930603193060318 ~1982
1930693579207918 ~1983
1930879193087918 ~1982
193093138618637 ~1980
1931309154504738 ~1982
1931383309021298 ~1982
1931519154521538 ~1982
193165138633037 ~1980
1931723811323678 ~1983
19317291197671999 ~1984
1931753115905198 ~1981
1931821115909278 ~1981
193184338636877 ~1980
1932017115921038 ~1981
1932193115931598 ~1981
1932197154575778 ~1982
1932197270507598
379
GIMPS The Prime Pages FactorDb.com
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25-09-07