Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
143261Factored
FactorDigitsBitsDate
18337409824.1old
10013943911029.92008-07-26 12:49:13
121390119604631443.52008-07-26 12:49:13
63980923277710491652.52009-03-05 15:10:28
82904594348807577070803919912892.72018-06-11 16:22:29
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000188 / 1566
Estimated T-Level: 30.6 ⓘ
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse69BA1BBD32363C294013
Verified (Factored)2017-10-09Chang Chia-Tche69BA1BBD32363C294013
Verified (Factored)2017-10-13kkmrkkblmbrbk69BA1BBD32363C2943127713
Verified2018-06-11axn6EA4E99795B5043A54942053
Verified2018-06-12arnaud6EA4E99795B5043A55297053
History
DateUserTypeResult
2018-06-12arnaudC-PRP
M143261/18337409/1001394391/12139011960463/6398092327771049/8290459434880757707080391991 : 6EA4E99795B5043A
PRP: Verified
PRP without proof (small exponent)
2018-06-11axnC-PRP
M143261/18337409/1001394391/12139011960463/6398092327771049/8290459434880757707080391991 : 6EA4E99795B5043A
PRP: Verified
PRP without proof (small exponent)
2018-06-11YxinityF-ECM
Factor: 8290459434880757707080391991 / (ECM curve 1, B1=250000, B2=25000000)
2017-10-13kkmrkkblmbrbkC-PRP
M143261/18337409/1001394391/12139011960463/6398092327771049 : 69BA1BBD32363C29
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M143261/known_factors : 69BA1BBD32363C29
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M143261/known_factors : 69BA1BBD32363C29
PRP without proof (not generated)
2017-04-09kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2009-03-05-Anonymous-F
Factor: 6398092327771049
2008-07-26J FeitsmaF
Factor: 12139011960463
2008-07-26J FeitsmaF
Factor: 1001394391