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
2145289Factored
FactorDigitsBitsDate
62361416342734056971962.42013-09-07 11:35:26
754297920958126815772066.02019-09-05 12:18:51
1823642512583440365819132477.32023-01-25 03:30:27
ECM
DigitsB1Curves
2550000101 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Kim Neve8B1698C1E47B8D410
Bad1999-03-01jim fowleyF4630DE4954F22792122160
Verified (Factored)1999-08-22Poul Poulsen8B1698C1E47B8D41374364
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-08Oliver Kruse9A94DCCF9E409D7C1013
Verified (Factored)2017-11-18kkmrkkblmbrbk9A94DCCF9E409D7C1149826313
Verified (Factored)2019-09-06mnd9A982616D1B3A39CE2189161553
Verified (Factored)2019-09-09GANA982616D1B3A39CE2163264053
Verified2023-01-27_p95holder_A982616D1B3A39CE3139400453
History
DateUserTypeResult
2023-01-27_p95holder_C-PRP
M2145289/6236141634273405697/75429792095812681577/182364251258344036581913 : A982616D1B3A39CE
PRP: Verified
PRP without proof (not generated)
2023-01-25_p95holder_F-ECM
Factor: 182364251258344036581913 / (ECM curve 7, B1=50000, B2=5000000)
2022-03-09LordJuliusNF
no factor from 2^65 to 2^66
2022-03-09LordJuliusNF
no factor from 2^64 to 2^65
2022-03-09LordJuliusNF
no factor from 2^63 to 2^64
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2019-09-09GANC-PRP
M2145289/6236141634273405697/75429792095812681577 : A982616D1B3A39CE
PRP: Verified
PRP without proof (not generated)
2019-09-06mnd9C-PRP
M2145289/6236141634273405697/75429792095812681577 : A982616D1B3A39CE
PRP: Verified
PRP without proof (not generated)
2019-09-05TJAOIF
Factor: 75429792095812681577 / TF: 66-67
2017-11-18kkmrkkblmbrbkC-PRP
M2145289/6236141634273405697 : 9A94DCCF9E409D7C
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2145289/6236141634273405697 : 9A94DCCF9E409D7C
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2013-09-07ramgeisF
Factor: 6236141634273405697 / TF: 62-63
2011-01-21James HeinrichNF-PM1
B1=130000, B2=2632500, E=6
2011-01-13JossNF-PM1
B1=50000
2010-12-30JossNF-PM1
B1=30000
2010-11-03JossNF-PM1
B1=20000
2009-01-07Sturle SundeNF
no factor from 2^61 to 2^62
2009-01-04Sturle SundeNF
no factor from 2^60 to 2^61