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
2129051Factored
FactorDigitsBitsDate
4258103722.0old
17032409824.02008-07-14 20:20:39
96062781131033.22008-07-14 20:20:39
2049288435322645175692167.52019-10-14 04:08:12
ECM
DigitsB1Curves
2550000103 / 280
Estimated T-Level: 21.8 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-08Oliver Kruse7035C93AB564F1393013
Verified (Factored)2017-11-18kkmrkkblmbrbk7035C93AB564F1393116786413
Verified2019-10-15mnd96031C6795B26A69E4169969653
Verified2019-10-15Jaytholomew6031C6795B26A69E4208852353
History
DateUserTypeResult
2019-10-15JaytholomewC-PRP
M2129051/4258103/17032409/9606278113/204928843532264517569 : 6031C6795B26A69E
PRP: Verified
PRP without proof (not generated)
2019-10-15mnd9C-PRP
M2129051/4258103/17032409/9606278113/204928843532264517569 : 6031C6795B26A69E
PRP: Verified
PRP without proof (not generated)
2019-10-14mnd9F-ECM
Factor: 204928843532264517569 / (ECM curve 3, B1=50000, B2=5000000, Sigma=577811318047467)
2017-11-18kkmrkkblmbrbkC-PRP
M2129051/4258103/17032409/9606278113 : 7035C93AB564F139
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2129051/4258103/17032409/9606278113 : 7035C93AB564F139
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-14George WoltmanF-ECM
Factor: 9606278113
2008-07-14George WoltmanF-ECM
Factor: 17032409