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
1911641Factored
FactorDigitsBitsDate
3168659464795911548.2old
1407484250870746970577832476.92021-01-20 02:17:15
ECM
DigitsB1Curves
2550000267 / 280
Estimated T-Level: 24.8
TF below 2^77 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-04Oliver Kruse4B6DE65F248BBA061013
Verified (Factored)2017-11-09kkmrkkblmbrbk4B6DE65F248BBA06180264013
Verified2021-01-20MarkSDD523EA27F7363502131977353
History
DateUserTypeResult
2021-01-20Ben DeloCERT
PRP Certification
Proof certified good
2021-01-20MarkSC-PRP
M1911641/316865946479591/140748425087074697057783 : DD523EA27F736350
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-20seatseaF-ECM
Factor: 140748425087074697057783 / (ECM curve 3, B1=50000, B2=5900000, Sigma=3698930703543143)
2017-11-09kkmrkkblmbrbkC-PRP
M1911641/316865946479591 : 4B6DE65F248BBA06
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1911641/316865946479591 : 4B6DE65F248BBA06
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12