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

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MnStatusDetails
3046763Factored
FactorDigitsBitsDate
91298797836771077374896855192892.92021-04-12 17:58:45
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Andrew Booker4B02AB83FDBD59350
Verified (Factored)1999-05-30Sean Mathias4B02AB83FDBD59352908514
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-04-13XZT4C2CE804D1105C94131026253
P-1 factors
DateFactorB1B2
2021-04-129129879783677107737489685519325433451854970665
History
DateUserTypeResult
2022-02-05JossNF-PM1
B1=1000000, B2=119912100
2022-01-20JossNF
no factor from 2^67 to 2^68
2021-04-13Ben DeloCERT
PRP Certification
Proof certified good
2021-04-13XZTC-PRP
M3046763/9129879783677107737489685519 : 4C2CE804D1105C94
PRP proof power = 7
PRP: Verified
Proof certified good
2021-04-12oodairaF-PM1
Factor: 9129879783677107737489685519 / (P-1, B1=32543345, B2=1854970665, E=12)
2021-03-25TJAOINF
no factor from 2^68 to 2^69
2018-07-24ramgeisNF
no factor from 2^67 to 2^68
2017-09-09mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-06Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-12Squeeky_SquirrelNF-PM1
B1=205000, B2=5688750, E=12
2015-06-06ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2010-11-09Sid & AndyNF
no factor from 2^61 to 2^62
2010-10-03markrNF-PM1
B1=110000, B2=2420000, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61