Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
3764773Factored
FactorDigitsBitsDate
3076590881586493501772193324516147330559341134.52016-01-18 19:35:15
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)Ari Orn0CA89008DE7985AE0
Verified (Factored)2000-04-05Marco Bresolin0CA89008DE7985AE2309074
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk6A725F16C5CF00CD1013
Verified2017-12-05Oliver Kruse6A725F16C5CF00CD1202732913
P-1 factors
DateFactorB1B2
2016-01-183076590881586493501772193324516147330559316000000
History
DateUserTypeResult
2022-07-17JossNF-PM1
B1=3764773, B2=3766198800
2022-06-16LordJuliusNF
no factor from 2^66 to 2^67
2022-06-16LordJuliusNF
no factor from 2^65 to 2^66
2022-05-15JossNF-PM1
B1=500000, B2=130364850
2022-03-09JossNF
no factor from 2^67 to 2^68
2017-12-05Oliver KruseC-PRP
M3764773/30765908815864935017721933245161473305593 : 6A725F16C5CF00CD
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M3764773/30765908815864935017721933245161473305593 : 6A725F16C5CF00CD
PRP: Verified
PRP without proof (not generated)
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-18mikrF-PM1
Factor: 30765908815864935017721933245161473305593 / (P-1, B1=1600000)
2015-01-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-25VictordeHollanderNF
no factor from 2^63 to 2^64
2012-04-06Squeeky_SquirrelNF-PM1
B1=110000, B2=2035000, E=6
2012-03-23GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-04-22markrNF
no factor from 2^61 to 2^62
2009-07-12Carsten KossendeyNF-PM1
B1=20000, B2=265000
2009-03-02S485122NF
no factor from 2^60 to 2^61