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
1817177Factored
FactorDigitsBitsDate
25440479824.6old
69052727826.02008-07-15 07:46:58
1591015172528236129546898872787.02020-06-13 08:03:51
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 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)2017-10-03Oliver Kruse7B7E956B9CCB0EBE2013
Verified (Factored)2017-11-05kkmrkkblmbrbk7B7E956B9CCB0EBE251025113
Verified2020-06-13M Miller41C709BA2F21ABAC319276653
Verified2020-06-15Team_Inspector41C709BA2F21ABAC389729653
History
DateUserTypeResult
2020-06-15Team_InspectorC-PRP
M1817177/25440479/69052727/159101517252823612954689887 : 41C709BA2F21ABAC
PRP: Verified
PRP without proof (not generated)
2020-06-13M MillerC-PRP
M1817177/25440479/69052727/159101517252823612954689887 : 41C709BA2F21ABAC
PRP: Verified
PRP without proof (not generated)
2020-06-13nordiF-ECM
Factor: 159101517252823612954689887 / (ECM curve 148, B1=50000, B2=5000000, Sigma=7113959082800950)
2017-11-05kkmrkkblmbrbkC-PRP
M1817177/25440479/69052727 : 7B7E956B9CCB0EBE
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1817177/25440479/69052727 : 7B7E956B9CCB0EBE
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15J FeitsmaF
Factor: 69052727