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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2182819Factored
FactorDigitsBitsDate
458391991928.8old
2133040659582542582572167.52022-08-25 21:39:14
ECM
DigitsB1Curves
2550000124 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-09Oliver Kruse4FBC63FE9436BEAB1013
Verified (Factored)2017-11-23kkmrkkblmbrbk4FBC63FE9436BEAB153511213
Verified2022-08-26/r/counting8EB43801288FAEF92207133753
Verified2022-08-26Wentao Huang8EB43801288FAEF9242316053
History
DateUserTypeResult
2022-08-26Mario TranquilliniCERT
PRP Certification
Proof certified good
2022-08-26Wentao HuangC-PRP
M2182819/458391991/213304065958254258257 : 8EB43801288FAEF9
PRP proof power = 7
PRP: Verified
Proof certified good
2022-08-26curtiscCERT
PRP Certification
Proof certified good
2022-08-26/r/countingC-PRP
M2182819/458391991/213304065958254258257 : 8EB43801288FAEF9
PRP proof power = 7
PRP: Verified
Proof certified good
2022-08-25_p95holder_F-ECM
Factor: 213304065958254258257 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-23kkmrkkblmbrbkC-PRP
M2182819/458391991 : 4FBC63FE9436BEAB
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-09Oliver KruseC-PRP
M2182819/458391991 : 4FBC63FE9436BEAB
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-23alpertronNF-PM1
B1=500000, B2=15000000, E=12