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

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MnStatusDetails
6029081Factored
FactorDigitsBitsDate
431409089246201016728340864972995.12021-12-10 11:45:10
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)1998-11-14Rick34154CB44E4C429E0
Verified (Factored)2000-12-21Ingo Saitz34154CB44E4C429E5872812
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-12-15mrhB88212C2C681C0941179784753
P-1 factors
DateFactorB1B2
2021-12-1043140908924620101672834086497250000050000000
History
DateUserTypeResult
2021-12-15JayderCERT
PRP Certification
Proof certified good
2021-12-15mrhC-PRP
M6029081/43140908924620101672834086497 : B88212C2C681C094
PRP proof power = 7
PRP: Verified
Proof certified good
2021-12-10takahashiF-PM1
Factor: 43140908924620101672834086497 / (P-1, B1=2500000, B2=50000000, E=12)
2021-12-01takahashiNF
no factor from 2^72 to 2^73
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-01-18takahashiNF
no factor from 2^70 to 2^71
2020-06-30takahashiNF
no factor from 2^69 to 2^70
2020-02-26takahashiNF
no factor from 2^68 to 2^69
2019-05-24takahashiNF-PM1
B1=400000, B2=7500000, E=12
2018-05-29ramgeisNF
no factor from 2^67 to 2^68
2016-03-11Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-05snme2pm1NF
no factor from 2^65 to 2^66
2014-09-15monstNF
no factor from 2^64 to 2^65
2014-09-12NesowaNF
no factor from 2^63 to 2^64
2013-02-21Squeeky_SquirrelNF-PM1
B1=110000, B2=2172500, E=6
2008-02-24David CampeauNF-PM1
B1=75000, B2=1875000, E=6