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

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MnStatusDetails
6954613Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3258874450051531567701807789020902232691141134.62023-08-26 03:21:38
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)Paul Victor Novarese3E6258DF3E3F80C70
Verified (Factored)1999-04-13Marc Getty / Phil Fizur3E6258DF3E3F80C70
Verified (Factored)2015-11-13MadPoo3E6258DF3E3F80C73398140
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-08-26Naegi Makoto5D8CEDD42559E41E1519713953
P-1 factors
DateFactorB1B2
2023-08-263258874450051531567701807789020902232691135000009616446840
History
DateUserTypeResult
2023-08-26Jonathan WebbCERT
PRP Certification
Proof certified good
2023-08-26Naegi MakotoC-PRP
M6954613/32588744500515315677018077890209022326911 : 5D8CEDD42559E41E
PRP proof power = 8
PRP: Verified
Proof certified good
2023-08-26ThaF-PM1
Factor: 32588744500515315677018077890209022326911 / (P-1, B1=3500000, B2=9616446840)
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-08-12SRBaseNF
no factor from 2^70 to 2^71
2021-08-01takahashiNF
no factor from 2^69 to 2^70
2021-06-18takahashiNF-PM1
B1=1000000, B2=30000000, E=12
2020-05-01TJAOINF
no factor from 2^68 to 2^69
2019-05-11takahashiNF-PM1
B1=300000, B2=5000000, E=6
2018-02-27-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-05Gordon SpenceNF
no factor from 2^66 to 2^67
2015-11-13MadPooC-LL
3E6258DF3E3F80C7
2015-06-26VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-16lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2009-06-20Roman MaznichenkoNF-PM1
B1=85000, B2=1615000, E=6