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

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MnStatusDetails
2983441Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
214807753927.7old
111481106139431443.32008-09-30 14:38:41
25112804816986571651.22014-06-19 11:21:26
ECM
DigitsB1Curves
255000070 / 280
Estimated T-Level: 21.3
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-26Oliver KruseD8205A4284A6D96A319086853
Verified2017-12-10kkmrkkblmbrbkD8205A4284A6D96A335194353
History
DateUserTypeResult
2023-02-23USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-10kkmrkkblmbrbkC-PRP
M2983441/214807753/11148110613943/2511280481698657 : D8205A4284A6D96A
PRP: Verified
PRP without proof (not generated)
2017-10-26Oliver KruseC-PRP
M2983441/214807753/11148110613943/2511280481698657 : D8205A4284A6D96A
PRP: Verified
PRP without proof (not generated)
2014-06-19TJAOIF
Factor: 2511280481698657
2008-09-30markrF
Factor: 11148110613943