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
729947Factored
FactorDigitsBitsDate
618995057929.2old
29690448235611341.42008-07-16 09:25:16
152289483391929438244578692268131100.32023-01-07 18:49:11
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-27Oliver Kruse84F31C595B35FB882013
Verified (Factored)2017-09-28Oliver Kruse84F31C595B35FB882013
Verified (Factored)2017-11-09kkmrkkblmbrbk84F31C595B35FB88264743113
Verified (Factored)2020-04-20Oliver Kruse69EF808C2175006D29756853
Verified2023-01-08LordJulius69EF808C2175006D318470053
P-1 factors
DateFactorB1B2
2023-01-07152289483391929438244578692268115000003613488450
History
DateUserTypeResult
2023-01-08xyuzyzCERT
PRP Certification
Proof certified good
2023-01-08LordJuliusC-PRP
M729947/618995057/2969044823561/1522894833919294382445786922681 : 69EF808C2175006D
PRP proof power = 6
PRP: Verified
Proof certified good
2023-01-07USAFSSF-PM1
Factor: 1522894833919294382445786922681 / (P-1, B1=1500000, B2=3613488450)
2020-04-20Oliver KruseC-PRP
M729947/618995057/2969044823561 : 69EF808C2175006D
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M729947/618995057/2969044823561 : 84F31C595B35FB88
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M729947/618995057/2969044823561 : 84F31C595B35FB88
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M729947/618995057/2969044823561 : 84F31C595B35FB88
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-16J FeitsmaF
Factor: 2969044823561