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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
9884999197699998 ~1986
9884999160136983910
9885077593104638 ~1987
9885203197704078 ~1986
9885437790834978 ~1987
9885611197712238 ~1986
9885637593138238 ~1987
9885901593154078 ~1987
98861991779515839 ~1988
9886451197729038 ~1986
9886559197731198 ~1986
9886559790924738
9886601593196078 ~1987
9886649790931938 ~1987
9886837593210238 ~1987
98871075734522079 ~1989
9887441790995298 ~1987
98876117119079939 ~1989
9887741791019298 ~1987
98880892373141379 ~1988
9888209791056738 ~1987
9888239197764798 ~1986
9888479197769598 ~1986
9888539791083138 ~1987
9888547988854718 ~1987
Exp. Prime Factor Digits Year
98887731384428239 ~1988
9888803197776078 ~1986
98890135537847299 ~1989
98890372373368899 ~1988
9889151197783038 ~1986
9889331197786638 ~1986
9889417593365038 ~1987
9889559197791198 ~1986
9889811197796238 ~1986
9889843988984318 ~1987
9889889791191138 ~1987
98898891384584479
9890057593403438 ~1987
9890081593404878 ~1987
98901832571447599 ~1988
9890341306600571110 ~1991
9890579197811598 ~1986
9890603197812078 ~1986
9890663197813278 ~1986
9890669791253538 ~1987
9890899989089918 ~1987
98909812967294319 ~1989
9891041593462478 ~1987
9891131791290498 ~1987
9891221791297698 ~1987
Exp. Prime Factor Digits Year
9891239197824798 ~1986
9891383197827678 ~1986
9891601593496078 ~1987
9891923197838478 ~1986
9892013593520798 ~1987
9892019791361538 ~1987
9892073593524398 ~1987
9892153593529198 ~1987
9892271197845438 ~1986
9892409791392738 ~1987
9892541791403298 ~1987
98926994748495539 ~1989
98927639497052499 ~1990
98928732176432079 ~1988
9893111197862238 ~1986
9893183197863678 ~1986
9893383989338318 ~1987
9893399197867998 ~1986
9893441593606478 ~1987
9894023197880478 ~1986
98941511583064179 ~1988
9894179197883598 ~1986
9894427989442718 ~1987
9894491197889838 ~1986
9894491791559298
Exp. Prime Factor Digits Year
9894559989455918 ~1987
9894617593677038 ~1987
9894971197899438 ~1986
9895001593700078 ~1987
9895103197902078 ~1986
98951339499327699 ~1990
9895601593736078 ~1987
9895631791650498 ~1987
9895667791653378 ~1987
9895943197918878 ~1986
9896039197920798 ~1986
98960771583372339 ~1988
9896123197922478 ~1986
9896189791695138 ~1987
9896459197929198 ~1986
98968931583502899 ~1988
9896911989691118 ~1987
9897001593820078 ~1987
9897037593822238 ~1987
9897059197941198 ~1986
9897203197944078 ~1986
9897221593833278 ~1987
9897361593841678 ~1987
9897539197950798 ~1986
98975412177459039 ~1988
1073
GIMPS The Prime Pages FactorDb.com
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26-07-05