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

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MnStatusDetails
3893497Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
23360983824.5old
26254940450171341.32008-09-07 21:13:02
6693649753058308731859.22015-11-04 12:08:29
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
Verified2017-11-12Oliver KruseE86D549E8C1B3FC43237564453
Verified2017-12-19kkmrkkblmbrbkE86D549E8C1B3FC43233557153
History
DateUserTypeResult
2022-09-27JossNF-PM1
B1=1000000, B2=130364850
2022-06-19LordJuliusNF
no factor from 2^66 to 2^67
2022-06-19LordJuliusNF
no factor from 2^65 to 2^66
2022-06-19LordJuliusNF
no factor from 2^64 to 2^65
2022-06-19LordJuliusNF
no factor from 2^63 to 2^64
2022-06-19LordJuliusNF
no factor from 2^60 to 2^63
2022-05-02JossNF-PM1
B1=500000, B2=130364850
2022-04-18JossNF-PM1
B1=300000
2022-03-03JossNF
no factor from 2^67 to 2^68
2017-12-19kkmrkkblmbrbkC-PRP
M3893497/23360983/2625494045017/669364975305830873 : E86D549E8C1B3FC4
PRP: Verified
PRP without proof (not generated)
2017-11-12Oliver KruseC-PRP
M3893497/23360983/2625494045017/669364975305830873 : E86D549E8C1B3FC4
PRP: Verified
PRP without proof (not generated)
2015-11-04TJAOIF
Factor: 669364975305830873 / TF: 59-60
2008-09-07Will EdgingtonF
Factor: 2625494045017