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
4042673Factored
FactorDigitsBitsDate
24256039824.5old
30050481327840263761809612581.32021-08-05 19:07:12
ECM
DigitsB1Curves
255000013 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-20kkmrkkblmbrbk3160E2887586D6901013
Verified (Factored)2018-01-08Oliver Kruse3160E2887586D690140167913
Verified2021-08-05ATH58E417350635C0A12218028753
P-1 factors
DateFactorB1B2
2023-09-213005048132784026376180961600000378656850
History
DateUserTypeResult
2023-09-21USAFSSF-PM1
Factor: 3005048132784026376180961 / (P-1, B1=600000, B2=378656850)
2022-09-05USAFSSNF-PM1
B1=180000, B2=96593640
2021-08-05curtiscCERT
PRP Certification
Proof certified good
2021-08-05ATHC-PRP
M4042673/24256039/3005048132784026376180961 : 58E417350635C0A1
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-05ATHF-PP1
Start=2/7, B1=500000, B2=50000000, Factor: 3005048132784026376180961
2018-01-08Oliver KruseC-PRP
M4042673/24256039 : 3160E2887586D690
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4042673/24256039 : 3160E2887586D690
PRP: Verified (Factored)
PRP without proof (not generated)