Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
3292027Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
239988768311134.5old
286011305771134.72008-09-07 19:48:08
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-03Oliver Kruse0F85C5FC11650E22280648053
Verified2017-12-14kkmrkkblmbrbk0F85C5FC11650E222238218053
History
DateUserTypeResult
2022-09-10JossNF-PM1
B1=1000000, B2=241175550
2022-03-10JossNF-PM1
B1=1000000, B2=134343300
2021-07-25JossNF
no factor from 2^67 to 2^68
2020-12-28JossNF-PM1
B1=329202, B2=3292027, E=6
2020-12-28JossNF-PM1
B1=329202
2020-12-28JossNF-PM1
B1=164601
2017-12-14kkmrkkblmbrbkC-PRP
M3292027/23998876831/28601130577 : 0F85C5FC11650E22
PRP: Verified
PRP without proof (not generated)
2017-11-03Oliver KruseC-PRP
M3292027/23998876831/28601130577 : 0F85C5FC11650E22
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 28601130577