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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
6153361369201678 ~1985
6153503123070078 ~1984
6153839123076798 ~1984
6153911492312898 ~1985
61540071107721279 ~1986
6154073369244398 ~1985
6154103123082078 ~1984
6154111615411118 ~1986
6154163123083278 ~1984
61541711107750799 ~1986
6154381369262878 ~1985
6154453369267198 ~1985
6154517369271038 ~1985
6154619123092398 ~1984
6154627615462718 ~1986
6154667492373378 ~1985
6154723984755698 ~1986
6154751123095038 ~1984
61549911107898399 ~1986
6155137369308238 ~1985
6155423123108478 ~1984
6155483123109678 ~1984
6155531123110638 ~1984
6155641369338478 ~1985
6155977369358638 ~1985
Exp. Prime Factor Digits Year
6155987492478978 ~1985
6156131123122638 ~1984
6156179123123598 ~1984
6156281492502498 ~1985
61563491354396799 ~1987
61563491477523779
6156629492530338 ~1985
6156641492531298 ~1985
6156659123133198 ~1984
6156901369414078 ~1985
6157103123142078 ~1984
6157163123143278 ~1984
6157183615718318 ~1986
6157861369471678 ~1985
6158543123170878 ~1984
6158857369531438 ~1985
61590113449046179 ~1988
61591331847739919 ~1987
6159137492730978 ~1985
6159221369553278 ~1985
6159311123186238 ~1984
6159337985493938 ~1986
6159443188478955910 ~1989
6159623123192478 ~1984
6159677369580638 ~1985
Exp. Prime Factor Digits Year
6159691615969118 ~1986
6159947492795778 ~1985
6160079123201598 ~1984
6160229862432078 ~1986
6160333369619998 ~1985
6160391123207838 ~1984
6160607492848578 ~1985
6160621985699378 ~1986
6160733369643998 ~1985
6160853369651198 ~1985
6160867616086718 ~1986
6161017369661038 ~1985
6161201369672078 ~1985
61612091848362719 ~1987
61613479488474399 ~1989
6161483123229678 ~1984
6161819123236398 ~1984
6162323123246478 ~1984
6162437862741198 ~1986
6162557493004578 ~1985
6162599123251998 ~1984
6162641369758478 ~1985
6162743123254878 ~1984
6162847616284718 ~1986
6163153369789198 ~1985
Exp. Prime Factor Digits Year
61632172342022479 ~1987
61632491355914799 ~1987
6163271123265438 ~1984
61633573944548499 ~1988
6163373369802398 ~1985
6163583123271678 ~1984
6163697493095778 ~1985
6163813369828798 ~1985
6164159123283198 ~1984
6164579123291598 ~1984
6165083123301678 ~1984
6165359123307198 ~1984
6165431123308638 ~1984
6165461493236898 ~1985
6165527493242178 ~1985
6165563123311278 ~1984
61655836535517999 ~1988
6165839123316798 ~1984
6166247493299778 ~1985
6166271123325438 ~1984
61664031603264799 ~1987
6166471616647118 ~1986
6166913370014798 ~1985
6167041370022478 ~1985
6167081370024878 ~1985
776
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25-07-08