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

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MnStatusDetails
3450869Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
89162448943931343.0old
866710956705732171756.32015-03-20 12:38:00
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
Verified2017-11-06Oliver Kruse9D9B668F00BFADF5232742753
Verified2017-12-16kkmrkkblmbrbk9D9B668F00BFADF52319563453
History
DateUserTypeResult
2022-05-12LordJuliusNF
no factor from 2^66 to 2^67
2022-05-12LordJuliusNF
no factor from 2^65 to 2^66
2022-05-12LordJuliusNF
no factor from 2^64 to 2^65
2022-05-12LordJuliusNF
no factor from 2^63 to 2^64
2022-05-12LordJuliusNF
no factor from 2^62 to 2^63
2022-01-25JossNF-PM1
B1=1000000, B2=114656850
2021-10-12JossNF
no factor from 2^67 to 2^68
2021-03-17JossNF
no factor from 2^65 to 2^66
2021-03-17JossNF-PM1
B1=345086, B2=6901738, E=12
2017-12-16kkmrkkblmbrbkC-PRP
M3450869/8916244894393/86671095670573217 : 9D9B668F00BFADF5
PRP: Verified
PRP without proof (not generated)
2017-11-06Oliver KruseC-PRP
M3450869/8916244894393/86671095670573217 : 9D9B668F00BFADF5
PRP: Verified
PRP without proof (not generated)
2015-03-20TJAOIF
Factor: 86671095670573217 / TF: 56-57