Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
1816051Factored
FactorDigitsBitsDate
14897298244347880643328283132890.32020-06-18 12:13:58
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)Michael J. Kilfoyle6179A5ADF68CDE640
Verified (Factored)1998-12-21Rick Shank6179A5ADF68CDE64795844
Verified (Factored)2015-07-18MadPoo6179A5ADF68CDE641390260
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-06-18mnd9F6EE01138C83BEC31129686053
Verified2020-06-18M MillerF6EE01138C83BEC3140913853
History
DateUserTypeResult
2020-06-18M MillerC-PRP
M1816051/1489729824434788064332828313 : F6EE01138C83BEC3
PRP: Verified
PRP without proof (not generated)
2020-06-18mnd9C-PRP
M1816051/1489729824434788064332828313 : F6EE01138C83BEC3
PRP: Verified
PRP without proof (not generated)
2020-06-18mnd9F-ECM
Factor: 1489729824434788064332828313 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1142776918160583)
2019-06-24TJAOINF
no factor from 2^67 to 2^68
2018-09-10JossNF-PM1
B1=1816051, B2=181605100, E=12
2018-03-19TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-09-02ramgeisNF
no factor from 2^65 to 2^66
2015-07-18MadPooC-LL
6179A5ADF68CDE64
2015-05-24mikrNF-PM1
B1=2780000, B2=91760000, E=12
2015-04-23snme2pm1NF
no factor from 2^64 to 2^65
2015-04-23snme2pm1NF
no factor from 2^63 to 2^64
2014-09-22JossNF-PM1
B1=170686
2014-05-13JossNF-PM1
B1=135343
2011-02-04Matteo2DNF
no factor from 2^62 to 2^63
2011-02-03Matteo2DNF
no factor from 2^61 to 2^62
2011-01-31henryzzNF-PM1
B1=100000, B2=10000000, E=12
2010-04-17Architects CubedNF
no factor from 2^60 to 2^61