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

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MnStatusDetails
3272147Factored
FactorDigitsBitsDate
859267425450655426585672376.22009-05-24 04:13:59
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Marinos YannikosC307C20156EB3B390
Verified (Factored)1998-04-05Bruce MitchellC307C20156EB3B390
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-03Oliver Kruse3EB8F9CB2A0D7FA3146711353
Verified2017-12-14kkmrkkblmbrbk3EB8F9CB2A0D7FA31105938353
History
DateUserTypeResult
2022-04-06LordJuliusNF
no factor from 2^66 to 2^67
2022-04-06LordJuliusNF
no factor from 2^65 to 2^66
2022-04-06LordJuliusNF
no factor from 2^64 to 2^65
2022-04-06LordJuliusNF
no factor from 2^63 to 2^64
2022-04-06LordJuliusNF
no factor from 2^62 to 2^63
2022-04-06LordJuliusNF
no factor from 2^1 to 2^62
2022-01-09JossNF
no factor from 2^68 to 2^69
2021-12-22JossNF-PM1
B1=3272147, B2=637437570
2021-12-19JossNF-PM1
B1=3272147, B2=109008900
2021-07-13JossNF
no factor from 2^67 to 2^68
2021-07-13JossNF-PM1
B1=3272147
2021-01-17JossNF-PM1
B1=327214, B2=3272147, E=6
2021-01-03JossNF-PM1
B1=327214
2020-12-25JossNF-PM1
B1=109071
2017-12-14kkmrkkblmbrbkC-PRP
M3272147/85926742545065542658567 : 3EB8F9CB2A0D7FA3
PRP: Verified
PRP without proof (not generated)
2017-11-03Oliver KruseC-PRP
M3272147/85926742545065542658567 : 3EB8F9CB2A0D7FA3
PRP: Verified
PRP without proof (not generated)
2009-05-24alan145F-ECM
Factor: 85926742545065542658567
2009-04-02S485122NF
no factor from 2^60 to 2^61