Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
1048573Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
73400111826.1old
2330602530362513695912167.72017-04-21 10:30:23
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 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
Verified2017-09-28Oliver KruseBA00505BAA1930962013
Verified2017-10-15Oliver KruseBA00505BAA193096247343413
Verified2017-12-27ATHBA00505BAA193096231402013
History
DateUserTypeResult
2021-07-18ViliamFNF-PM1
B1=10000000, B2=1110000000
2017-12-27ATHC-PRP
M1048573/73400111/233060253036251369591 : BA00505BAA193096
PRP: Verified
PRP without proof (not generated)
2017-10-15Oliver KruseC-PRP
M1048573/73400111/233060253036251369591 : BA00505BAA193096
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1048573/73400111/233060253036251369591 : BA00505BAA193096
PRP: Verified
PRP without proof (not generated)
2017-04-21TJAOIF-ECM
Factor: 233060253036251369591 / (ECM curve 115, B1=50000, B2=5000000)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12