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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.
Exponent Prime Factor Digits Year
248341131490046799 ~1990
248352973973647539 ~1991
24835511496710238 ~1989
248358171490149039 ~1990
24836111496722238 ~1989
24836411496728238 ~1989
248373314470719599 ~1991
24837623496752478 ~1989
24837863496757278 ~1989
24837899496757998 ~1989
24838199496763998 ~1989
24839579496791598 ~1989
24839723496794478 ~1989
24839879496797598 ~1989
24840071496801438 ~1989
24840743496814878 ~1989
24842171496843438 ~1989
24842399496847998 ~1989
24842459496849198 ~1989
24842903496858078 ~1989
24843743496874878 ~1989
24844139496882798 ~1989
24844499496889998 ~1989
248449791987598339 ~1990
24845231496904638 ~1989
Exponent Prime Factor Digits Year
24845339496906798 ~1989
24845963496919278 ~1989
24846491496929838 ~1989
24846683496933678 ~1989
24846743496934878 ~1989
248470992484709919 ~1990
24847103496942078 ~1989
248473674472526079 ~1991
24848039496960798 ~1989
24848123496962478 ~1989
24848459496969198 ~1989
24848819496976398 ~1989
24848963496979278 ~1989
248494011490964079 ~1990
24850229134191236710 ~1992
248502611491015679 ~1990
248502971491017839 ~1990
24850691497013838 ~1989
24850751497015038 ~1989
248507895467173599 ~1991
248508771491052639 ~1990
24851111497022238 ~1989
248514471988115779 ~1990
24851471497029438 ~1989
24851903497038078 ~1989
Exponent Prime Factor Digits Year
24853151497063038 ~1989
24853331497066638 ~1989
24853859497077198 ~1989
24853883497077678 ~1989
24853943497078878 ~1989
248541073976657139 ~1991
248541619941664419 ~1992
24854339497086798 ~1989
248543531491261199 ~1990
24854759497095198 ~1989
248549871988398979 ~1990
248551971491311839 ~1990
248554371988434979 ~1990
24855791497115838 ~1989
24855839497116798 ~1989
24855851497117038 ~1989
24855899497117998 ~1989
248560032485600319 ~1990
24856691497133838 ~1989
24857243497144878 ~1989
24857639497152798 ~1989
248581075965945699 ~1991
24858371497167438 ~1989
24858623497172478 ~1989
24859379497187598 ~1989
Exponent Prime Factor Digits Year
248605195966524579 ~1991
24860639497212798 ~1989
24860963497219278 ~1989
24861059497221198 ~1989
24862223497244478 ~1989
24862451497249038 ~1989
24862499497249998 ~1989
24863339497266798 ~1989
248634714475424799 ~1991
24863771497275438 ~1989
248638032486380319 ~1990
248642211491853279 ~1990
24865103497302078 ~1989
24865391497307838 ~1989
24865583497311678 ~1989
248656971989255779 ~1990
24865943497318878 ~1989
24866531497330638 ~1989
24866591497331838 ~1989
24867263497345278 ~1989
248673971492043839 ~1990
24868139497362798 ~1989
248681573481541999 ~1991
248681871989454979 ~1990
24868583497371678 ~1989
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25-07-08