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

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MnStatusDetails
3433459Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
34334591825.0old
133492885931133.62008-09-07 19:49:11
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-06kkmrkkblmbrbk704432AD42B719162138211453
Verified2017-11-21Oliver Kruse704432AD42B71916238644153
History
DateUserTypeResult
2022-02-23JossNF-PM1
B1=1000000, B2=127313550
2021-10-13JossNF
no factor from 2^67 to 2^68
2021-02-14JossNF-PM1
B1=343345, B2=7210263, E=6
2017-11-21Oliver KruseC-PRP
M3433459/34334591/13349288593 : 704432AD42B71916
PRP: Verified
PRP without proof (not generated)
2017-11-06kkmrkkblmbrbkC-PRP
M3433459/34334591/13349288593 : 704432AD42B71916
PRP: Verified
PRP without proof (not generated)
2008-09-07Will EdgingtonF
Factor: 13349288593