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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
8378351167567038 ~1985
8378633502717998 ~1986
8378681670294498 ~1987
8378879167577598 ~1985
8379149221209533710 ~1990
83794732011073539 ~1988
8379557502773438 ~1986
8379599167591998 ~1985
8379907837990718 ~1987
83799112178776879 ~1988
8380103167602078 ~1985
8380693502841598 ~1986
83807215196047039 ~1989
8380781502846878 ~1986
83812271340996339 ~1987
8381237502874238 ~1986
8381291167625838 ~1985
8381341502880478 ~1986
8381669670533538 ~1987
8381699167633998 ~1985
83817191508709439 ~1987
8381819167636398 ~1985
8381903167638078 ~1985
83819091173467279 ~1987
8381993502919598 ~1986
Exp. Prime Factor Digits Year
8382151838215118 ~1987
8382299167645998 ~1985
8382323167646478 ~1985
83824432011786339 ~1988
8382719167654398 ~1985
8383019167660398 ~1985
8383163167663278 ~1985
8383469670677538 ~1987
8383631167672638 ~1985
8384003167680078 ~1985
8384093503045598 ~1986
8384309670744738 ~1987
8385059167701198 ~1985
8385521503131278 ~1986
8385563167711278 ~1985
8386223167724478 ~1985
83862671509528079 ~1987
8386331167726638 ~1985
8386439167728798 ~1985
83864394025490739
8386739167734798 ~1985
8386769132510950310 ~1990
8386883167737678 ~1985
8387033503221998 ~1986
8387191838719118 ~1987
Exp. Prime Factor Digits Year
8387231167744638 ~1985
8387243167744878 ~1985
8387339167746798 ~1985
8387957503277438 ~1986
83882091174349279 ~1987
8388539671083138 ~1987
83886832684378579 ~1988
8388833503329998 ~1986
8389237503354238 ~1986
8389657503379438 ~1986
8389679671174338 ~1987
8389883167797678 ~1985
8389919167798398 ~1985
83899734698384899 ~1989
8390273503416398 ~1986
8390303167806078 ~1985
83904975369918099 ~1989
8390513503430798 ~1986
8390663167813278 ~1985
8390717503443038 ~1986
8390939167818798 ~1985
8391023167820478 ~1985
8391083167821678 ~1985
8391263167825278 ~1985
8391283839128318 ~1987
Exp. Prime Factor Digits Year
8391479167829598 ~1985
8392193503531598 ~1986
8392799167855998 ~1985
8392829671426338 ~1987
8392933503575998 ~1986
8393111167862238 ~1985
8393243167864878 ~1985
8393279167865598 ~1985
8393761503625678 ~1986
8393849671507938 ~1987
8393941503636478 ~1986
8394017503641038 ~1986
83940372014568899 ~1988
8394041503642478 ~1986
83940838058319699 ~1989
8394377671550178 ~1987
83944692518340719 ~1988
8394539167890798 ~1985
8394613503676798 ~1986
8394803167896078 ~1985
8394983167899678 ~1985
8395043167900878 ~1985
8395061503703678 ~1986
8395097503705838 ~1986
8395133503707998 ~1986
917
GIMPS The Prime Pages FactorDb.com
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25-04-13