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
177421Factored
FactorDigitsBitsDate
1494837894673680862012167.02007-11-06 21:08:24
ECM
DigitsB1Curves
2550000280 / 280
30250000628 / 640
Estimated T-Level: 29.9
TF below 2^94 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse3825AB58AB0198271013
Verified2017-10-12kkmrkkblmbrbk3825AB58AB019827116802613
Verified2020-04-17Oliver KruseB01C9CE85598CC0917152953
Verified2024-02-03Wentao HuangB01C9CE85598CC09116811653
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M177421/149483789467368086201 : B01C9CE85598CC09
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M177421/149483789467368086201 : B01C9CE85598CC09
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M177421/149483789467368086201 : 3825AB58AB019827
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M177421/149483789467368086201 : 3825AB58AB019827
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M177421/149483789467368086201 : 3825AB58AB019827
PRP without proof (not generated)
2017-05-22kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2007-11-06Chad DavisF-ECM
Factor: 149483789467368086201