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
1468591Factored
FactorDigitsBitsDate
5117779521984675513912168.82009-06-06 04:49:17
4357851795867851639491132478.52019-03-29 12:16:13
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)Alex van Renesse29CD1FA766CFF6890
Verified (Factored)Simon Burge29CD1FA766CFF6890
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-01Oliver Kruse9A51F08BB30AD2411013
Verified (Factored)2017-10-28kkmrkkblmbrbk9A51F08BB30AD241148602013
Verified2019-03-29ATHEF7BBA9644E78446236414353
Verified2019-03-30oodairaEF7BBA9644E784462110244253
History
DateUserTypeResult
2019-03-30oodairaC-PRP
M1468591/511777952198467551391/435785179586785163949113 : EF7BBA9644E78446
PRP: Verified
PRP without proof (not generated)
2019-03-29ATHC-PRP
M1468591/511777952198467551391/435785179586785163949113 : EF7BBA9644E78446
PRP: Verified
PRP without proof (not generated)
2019-03-29TJAOIF-ECM
Factor: 435785179586785163949113 / (ECM curve 56, B1=50000, B2=5000000)
2017-10-28kkmrkkblmbrbkC-PRP
M1468591/511777952198467551391 : 9A51F08BB30AD241
PRP: Verified
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1468591/511777952198467551391 : 9A51F08BB30AD241
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-06-06axnF-ECM
Factor: 511777952198467551391