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
1757401Factored
FactorDigitsBitsDate
18410595096241933896472270.62016-01-03 17:39:52
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 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)Ken Kriesel138B22FBFA256E9D0
Verified (Factored)1998-12-06Andreas Meyer138B22FBFA256E9D703978
Verified (Factored)2015-06-27MadPoo138B22FBFA256E9D433381
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertronAFC0429A3D2B47711013
Verified2017-10-19Oliver KruseAFC0429A3D2B477119734713
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1757401/1841059509624193389647 : AFC0429A3D2B4771
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1757401/1841059509624193389647 : AFC0429A3D2B4771
PRP: Verified
PRP without proof (not generated)
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-03Chang Chia-TcheF-ECM
Factor: 1841059509624193389647 / (ECM curve 3, B1=50000, B2=5000000)
2015-09-06ramgeisNF
no factor from 2^65 to 2^66
2015-06-27MadPooC-LL
138B22FBFA256E9D
2015-05-14snme2pm1NF
no factor from 2^64 to 2^65
2015-05-14snme2pm1NF
no factor from 2^63 to 2^64
2015-04-27mikrNF-PM1
B1=2475400, B2=86660000, E=12
2014-09-17-Anonymous-NF-PM1
B1=173044
2014-05-09JossNF-PM1
B1=136522
2014-04-08JossNF-PM1
B1=100000
2011-02-09Carsten KossendeyNF-PM1
B1=95000, B2=1567500, E=6
2010-12-13GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-23Architects CubedNF
no factor from 2^60 to 2^61