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
1995061Factored
FactorDigitsBitsDate
446095639611135.4old
56267561773109061111962.32016-07-20 10:32:22
17888570827833509715432270.62021-07-10 17:37:40
ECM
DigitsB1Curves
2550000280 / 280
3025000059 / 640
Estimated T-Level: 25.5
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseBD2785F3C41EE1622013
Verified (Factored)2017-11-13kkmrkkblmbrbkBD2785F3C41EE162234107913
Verified2021-07-15/r/countingBC5742C974F947643194552353
History
DateUserTypeResult
2022-08-15USAFSSNF-PM1
B1=132000, B2=134381520
2021-07-15curtiscCERT
PRP Certification
Proof certified good
2021-07-15/r/countingC-PRP
M1995061/44609563961/5626756177310906111/1788857082783350971543 : BC5742C974F94764
PRP proof power = 7
PRP: Verified
Proof certified good
2021-07-10_p95holder_F-ECM
Factor: 1788857082783350971543 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-13kkmrkkblmbrbkC-PRP
M1995061/44609563961/5626756177310906111 : BD2785F3C41EE162
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1995061/44609563961/5626756177310906111 : BD2785F3C41EE162
PRP: Verified (Factored)
PRP without proof (not generated)
2016-07-20TJAOIF
Factor: 5626756177310906111 / TF: 62-63