Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
1777547Factored
FactorDigitsBitsDate
342504108465039177829912374.92017-09-27 16:19:28
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)Jack B Sippel II816ECA1E3B1CB8FC0
Verified (Factored)1998-12-06Jakob Trier816ECA1E3B1CB8FC1428539
Verified (Factored)2015-07-18MadPoo816ECA1E3B1CB8FC1361876
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-29kkmrkkblmbrbkA56D7B98EA1B32971013
Verified2017-10-19Oliver KruseA56D7B98EA1B3297191084313
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1777547/34250410846503917782991 : A56D7B98EA1B3297
PRP: Verified
PRP without proof (not generated)
2017-09-29kkmrkkblmbrbkC-PRP
M1777547/34250410846503917782991 : A56D7B98EA1B3297
PRP: Verified
PRP without proof (not generated)
2017-09-27Chang Chia-TcheF-ECM
Factor: 34250410846503917782991 / (ECM curve 1, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-11ramgeisNF
no factor from 2^65 to 2^66
2015-07-18MadPooC-LL
816ECA1E3B1CB8FC
2015-05-23mikrNF-PM1
B1=2475400, B2=86660000, E=12
2015-05-08snme2pm1NF
no factor from 2^64 to 2^65
2015-05-08snme2pm1NF
no factor from 2^63 to 2^64
2014-09-18JossNF-PM1
B1=172216
2014-05-09JossNF-PM1
B1=136108
2014-04-10-Anonymous-NF-PM1
B1=100000
2011-02-07Carsten KossendeyNF-PM1
B1=95000, B2=1615000, E=6
2011-01-21GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-20Architects CubedNF
no factor from 2^60 to 2^61