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
1465663Factored
FactorDigitsBitsDate
528265475005404500812065.52009-04-13 15:46:30
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Vincent J. Mooney323BA6141EEA38D70
Verified (Factored)1999-01-02Michael Pfeiffer323BA6141EEA38D7611350
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-01Oliver KruseD7F090C222BE20DA1013
Verified2017-10-28kkmrkkblmbrbkD7F090C222BE20DA1129447213
History
DateUserTypeResult
2017-10-28kkmrkkblmbrbkC-PRP
M1465663/52826547500540450081 : D7F090C222BE20DA
PRP: Verified
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1465663/52826547500540450081 : D7F090C222BE20DA
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-04-13axnF-ECM
Factor: 52826547500540450081