Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
982939Factored
FactorDigitsBitsDate
323564730090965153112064.82008-02-05 11:04:45
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David SlowinskiCC50
Verified (Factored)Alex and Nick Myrman6CC50
Verified (Factored)Guillermo Ballester Valor8CDEF267A33FECC50
Verified (Factored)2002-01-08Matt Horbal8CDEF267A33FECC5853181
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-28Oliver Kruse9B22155FDC7AA14F1013
Verified2017-10-16kkmrkkblmbrbk9B22155FDC7AA14F134563313
Unverified (Reliable)2020-04-24Oliver Kruse272B48DFDC1724__180896153
History
DateUserTypeResult
2020-04-24Oliver KruseC-PRP
M982939/32356473009096515311 : 272B48DFDC1724__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-16kkmrkkblmbrbkC-PRP
M982939/32356473009096515311 : 9B22155FDC7AA14F
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M982939/32356473009096515311 : 9B22155FDC7AA14F
PRP: Unverified (Reliable)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=200000, B2=5000000, E=6
2008-02-05Team_BunduF-ECM
Factor: 32356473009096515311