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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Exponent Range:










MnStatusDetails
1745693Factored
FactorDigitsBitsDate
44937743001765198232732271.92016-03-13 03:30:12
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)Mikael BillbergAE38E8A667B28EED0
Verified (Factored)1998-11-28Nuutti KuosaAE38E8A667B28EED753898
Verified (Factored)2015-06-27MadPooAE38E8A667B28EED625823
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-03Oliver Kruse2EEA8BB19A2B79E81013
Verified2017-11-03kkmrkkblmbrbk2EEA8BB19A2B79E8119096813
History
DateUserTypeResult
2017-11-03kkmrkkblmbrbkC-PRP
M1745693/4493774300176519823273 : 2EEA8BB19A2B79E8
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1745693/4493774300176519823273 : 2EEA8BB19A2B79E8
PRP: Verified
PRP without proof (not generated)
2016-03-13Chang Chia-TcheF-ECM
Factor: 4493774300176519823273 / (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 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2015-09-04ramgeisNF
no factor from 2^65 to 2^66
2015-06-27MadPooC-LL
AE38E8A667B28EED
2015-05-12snme2pm1NF
no factor from 2^64 to 2^65
2015-05-12snme2pm1NF
no factor from 2^63 to 2^64
2015-04-19mikrNF-PM1
B1=2475400, B2=86660000, E=12
2014-09-15-Anonymous-NF-PM1
B1=173534
2014-05-06JossNF-PM1
B1=136767
2014-04-05JossNF-PM1
B1=100000
2011-02-10Carsten KossendeyNF-PM1
B1=95000, B2=1543750, E=6
2011-01-21GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-18Architects CubedNF
no factor from 2^60 to 2^61