Marin Mersenne 2^P-1
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MnStatusDetails
3389437Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
46641986427923291652.1old
285426585797840811754.72014-12-07 13:33:13
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
Verified2017-11-05kkmrkkblmbrbk41482895EC9758C32148085653
Verified2017-11-21Oliver Kruse41482895EC9758C3240417153
History
DateUserTypeResult
2022-11-11LordJuliusNF
no factor from 2^66 to 2^67
2022-11-11LordJuliusNF
no factor from 2^65 to 2^66
2022-11-11LordJuliusNF
no factor from 2^64 to 2^65
2022-11-11LordJuliusNF
no factor from 2^63 to 2^64
2022-11-11LordJuliusNF
no factor from 2^62 to 2^63
2022-08-16JossNF-PM1
B1=3389437, B2=368560500
2021-12-29JossNF-PM1
B1=3389437, B2=111907950
2021-12-28JossNF-PM1
B1=3389437
2021-10-24JossNF
no factor from 2^67 to 2^68
2021-03-14JossNF-PM1
B1=338943, B2=7117817, E=6
2021-02-19JossNF-PM1
B1=338943, B2=3728380, E=6
2017-11-21Oliver KruseC-PRP
M3389437/4664198642792329/28542658579784081 : 41482895EC9758C3
PRP: Verified
PRP without proof (not generated)
2017-11-05kkmrkkblmbrbkC-PRP
M3389437/4664198642792329/28542658579784081 : 41482895EC9758C3
PRP: Verified
PRP without proof (not generated)
2014-12-07TJAOIF
Factor: 28542658579784081 / TF: 54-55