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

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MnStatusDetails
1696451Factored
FactorDigitsBitsDate
7718496661803515044581323565108829735115.92019-11-02 12:07:38
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.
LL
StatusDateUserResidueShift
Verified (Factored)The Grebelius Family6364714D269AF90E0
Verified (Factored)1999-08-31Dustin Trzaskowski6364714D269AF90E746793
Verified (Factored)2015-07-03MadPoo6364714D269AF90E428442
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-11-02ATH6E7B0C7B5CF44C5F146288453
Verified2019-11-02nordi6E7B0C7B5CF44C5F148733953
History
DateUserTypeResult
2019-11-02nordiC-PRP
M1696451/77184966618035150445813235651088297 : 6E7B0C7B5CF44C5F
PRP: Verified
PRP without proof (not generated)
2019-11-02ATHC-PRP
M1696451/77184966618035150445813235651088297 : 6E7B0C7B5CF44C5F
PRP: Verified
PRP without proof (not generated)
2019-11-02nordiF-ECM
Factor: 77184966618035150445813235651088297 / (ECM curve 15, B1=250000, B2=25000000, Sigma=8654937224968351)
2019-06-17TJAOINF
no factor from 2^67 to 2^68
2017-09-08TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-13ramgeisNF
no factor from 2^65 to 2^66
2015-07-03MadPooC-LL
6364714D269AF90E
2015-02-15VictordeHollanderNF-PM1
B1=10000000, B2=200000000, E=12
2015-01-31JossNF-PM1
B1=309926
2015-01-30VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-30VictordeHollanderNF
no factor from 2^63 to 2^64
2015-01-05JossNF-PM1
B1=281751
2014-09-30JossNF-PM1
B1=187834
2014-05-01-Anonymous-NF-PM1
B1=150000
2014-03-31JossNF-PM1
B1=100000
2011-02-02Carsten KossendeyNF-PM1
B1=90000, B2=1485000, E=6
2011-01-26JossNF-PM1
B1=50000
2010-09-26GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-24Architects CubedNF
no factor from 2^60 to 2^61