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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Exponent Range:










MnStatusDetails
6964277Factored
FactorDigitsBitsDate
246720190908129582962744229115131101.02023-09-02 17:15:14
ECM
DigitsB1Curves
25500006 / 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)1999-06-15Merrill C. Jones4595092A5C62E3680
Verified (Factored)2001-12-01Stephen Wood4595092A5C62E368510744
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-09-03Naegi MakotoC958296940D05957177415653
P-1 factors
DateFactorB1B2
2023-09-02246720190908129582962744229115135000009616446840
History
DateUserTypeResult
2023-09-03curtiscCERT
PRP Certification
Proof certified good
2023-09-03Naegi MakotoC-PRP
M6964277/2467201909081295829627442291151 : C958296940D05957
PRP proof power = 8
PRP: Verified
Proof certified good
2023-09-02ThaF-PM1
Factor: 2467201909081295829627442291151 / (P-1, B1=3500000, B2=9616446840)
2021-11-17Seth_TrNF-PM1
B1=3000000, B2=75000000, E=12
2021-10-13SRBaseNF
no factor from 2^71 to 2^72
2021-09-07SRBaseNF
no factor from 2^70 to 2^71
2021-08-04takahashiNF
no factor from 2^69 to 2^70
2020-04-24TJAOINF
no factor from 2^68 to 2^69
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-24Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-15lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-09-06Carsten KossendeyNF-PM1
B1=440000, B2=13640000, E=12