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
1907377Factored
FactorDigitsBitsDate
87739343826.4old
121766947691133.52008-07-15 07:48:04
35288018902976958053832271.62021-02-21 13:29:00
2750157615203766429748632477.92021-08-22 02:47:42
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 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
Verified (Factored)2017-10-04Oliver Kruse09BE88D8A9DC55DC2013
Verified (Factored)2017-11-09Chang Chia-Tche09BE88D8A9DC55DC2148256713
Verified (Factored)2021-02-23LaurV2968B666159FF7DF378936453
Verified2021-08-22SRJ28772968B666159FF7DF46378153
History
DateUserTypeResult
2021-08-22JerryHeddenCERT
PRP Certification
Proof certified good
2021-08-22SRJ2877C-PRP
M1907377/87739343/12176694769/3528801890297695805383/275015761520376642974863 : 2968B666159FF7DF
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-22Dylan DelgadoF-ECM
Factor: 275015761520376642974863 / (ECM curve 2, B1=50000, B2=6750000, Sigma=5285137559613074)
2021-07-01Dylan DelgadoNF-PM1
B1=2000000, B2=262000000
2021-04-07Dylan DelgadoNF-PM1
B1=1000000, B2=71000000
2021-02-23AngryLispingSlothCERT
PRP Certification
Proof certified good
2021-02-23LaurVC-PRP
M1907377/87739343/12176694769/3528801890297695805383 : 2968B666159FF7DF
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2021-02-21_p95holder_F-ECM
Factor: 3528801890297695805383 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-09Chang Chia-TcheC-PRP
M1907377/87739343/12176694769 : 09BE88D8A9DC55DC
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1907377/87739343/12176694769 : 09BE88D8A9DC55DC
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-15J FeitsmaF
Factor: 12176694769