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

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MnStatusDetails
3628133Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
100354158791133.2old
3549282653446958811858.32015-08-25 11:35:19
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
Verified2017-11-10Oliver Kruse2011C748B7792042292292753
Verified2017-12-18kkmrkkblmbrbk2011C748B77920422264956553
History
DateUserTypeResult
2022-05-21JossNF-PM1
B1=100000, B2=130364850
2022-02-28JossNF-PM1
B1=90000
2017-12-18kkmrkkblmbrbkC-PRP
M3628133/10035415879/354928265344695881 : 2011C748B7792042
PRP: Verified
PRP without proof (not generated)
2017-11-10Oliver KruseC-PRP
M3628133/10035415879/354928265344695881 : 2011C748B7792042
PRP: Verified
PRP without proof (not generated)
2015-08-25TJAOIF
Factor: 354928265344695881 / TF: 58-59