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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Exponent Range:










MnStatusDetails
2075947Factored
FactorDigitsBitsDate
287610284659322331754.7old
5669934864569696184661272478.92021-08-31 12:06:39
ECM
DigitsB1Curves
2550000128 / 280
Estimated T-Level: 22.3
TF below 2^69 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse2C3A5A119E2C235B1013
Verified (Factored)2017-11-16kkmrkkblmbrbk2C3A5A119E2C235B180597713
Verified2021-08-31SRJ2877893DAE52E0DF84EE2173619853
History
DateUserTypeResult
2021-08-31curtiscCERT
PRP Certification
Proof certified good
2021-08-31SRJ2877C-PRP
M2075947/28761028465932233/566993486456969618466127 : 893DAE52E0DF84EE
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-31_p95holder_F-ECM
Factor: 566993486456969618466127 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-16kkmrkkblmbrbkC-PRP
M2075947/28761028465932233 : 2C3A5A119E2C235B
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2075947/28761028465932233 : 2C3A5A119E2C235B
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12