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
1462891Factored
FactorDigitsBitsDate
48810761749274727750758123992892.02009-01-26 13:16:45
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)phil kennyDF733D9C247AA2FD0
Verified (Factored)2002-05-05David J. ZookDF733D9C247AA2FD185176
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-01Oliver KruseAAE3C24162E14CB91013
Verified2017-10-27kkmrkkblmbrbkAAE3C24162E14CB91103356713
History
DateUserTypeResult
2017-10-27kkmrkkblmbrbkC-PRP
M1462891/4881076174927472775075812399 : AAE3C24162E14CB9
PRP: Verified
PRP without proof (not generated)
2017-10-01Oliver KruseC-PRP
M1462891/4881076174927472775075812399 : AAE3C24162E14CB9
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-01-26axnF-ECM
Factor: 4881076174927472775075812399