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

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MnStatusDetails
3526147Factored
FactorDigitsBitsDate
536461022129380950172065.52015-05-18 22:37:32
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-08-24IES R.Dieste-I.Larrosa061A392389D64ADC0
Verified (Factored)1999-08-31schebi061A392389D64ADC2230238
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-08kkmrkkblmbrbk3E77976DA33AB407193487453
Verified2017-11-24Oliver Kruse3E77976DA33AB407120100453
History
DateUserTypeResult
2022-09-20JossNF-PM1
B1=1000000, B2=145208700
2022-06-04LordJuliusNF
no factor from 2^66 to 2^67
2022-06-04LordJuliusNF
no factor from 2^64 to 2^65
2022-06-04LordJuliusNF
no factor from 2^63 to 2^64
2022-06-04LordJuliusNF
no factor from 2^62 to 2^63
2022-06-04LordJuliusNF
no factor from 2^1 to 2^62
2022-04-30JossNF-PM1
B1=500000, B2=145208700
2022-03-01JossNF-PM1
B1=100000
2022-02-22JossNF
no factor from 2^67 to 2^68
2017-11-24Oliver KruseC-PRP
M3526147/53646102212938095017 : 3E77976DA33AB407
PRP: Verified
PRP without proof (not generated)
2017-11-08kkmrkkblmbrbkC-PRP
M3526147/53646102212938095017 : 3E77976DA33AB407
PRP: Verified
PRP without proof (not generated)
2015-05-18KAMCOBILLF-ECM
Factor: 53646102212938095017
2015-01-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-27VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-10JossNF-PM1
B1=96404
2014-08-07JossNF-PM1
B1=78202
2012-06-20GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-21USAFSSNF-PM1
B1=60000, B2=990000, E=6
2011-07-03Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-18S485122NF
no factor from 2^60 to 2^61