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
3429901Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
20579407824.3old
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
Verified2017-11-06kkmrkkblmbrbk9C05689DA1FC84A41326199953
Verified2017-11-21Oliver Kruse9C05689DA1FC84A41238503553
History
DateUserTypeResult
2022-01-15JossNF-PM1
B1=1000000, B2=114656850
2021-04-01JossNF
no factor from 2^67 to 2^68
2020-11-06JossNF-PM1
B1=342990, B2=3429901, E=6
2020-10-21JossNF-PM1
B1=114330
2017-11-21Oliver KruseC-PRP
M3429901/20579407 : 9C05689DA1FC84A4
PRP: Verified
PRP without proof (not generated)
2017-11-06kkmrkkblmbrbkC-PRP
M3429901/20579407 : 9C05689DA1FC84A4
PRP: Verified
PRP without proof (not generated)