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

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MnStatusDetails
9141029Factored
FactorDigitsBitsDate
375621005101305789773212375.02021-09-26 15:24:38
3467226046168230426577132478.22021-09-26 15:24:38
69723405682341311702811641532892.52021-09-26 15:24:38
ECM
DigitsB1Curves
25500003 / 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)2001-08-26Matthijs Wolters41B3F89199B34BF73096544
Verified (Factored)2003-03-16Marc Getty / Phil Fizur41B3F89199B34BF72305824
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-01ATH6A0EB5BD795B41CE3238567553
P-1 factors
DateFactorB1B2
2021-09-26908051790796353334585585298739276624673784239130178418913925594416073835692000000146000000
2021-09-26908051790796353334585585298739276624673784239130178418913925594416073835694000000332000000
History
DateUserTypeResult
2021-10-02GyuriCERT
PRP Certification
Proof certified good
2021-10-01ATHC-PRP
M9141029/346722604616823042657713/6972340568234131170281164153/37562100510130578977321 : 6A0EB5BD795B41CE
PRP proof power = 8
PRP: Verified
Proof certified good
2021-09-26ThaF-PM1
Factor: 90805179079635333458558529873927662467378423913017841891392559441607383569 / (P-1, B1=4000000, B2=332000000)
2021-09-26ThaF-PM1
Factor: 90805179079635333458558529873927662467378423913017841891392559441607383569 / (P-1, B1=2000000, B2=146000000)
2016-01-22ramgeisNF
no factor from 2^70 to 2^71
2014-03-30ramgeisNF
no factor from 2^69 to 2^70
2014-03-30ramgeisNF
no factor from 2^68 to 2^69
2014-03-30ramgeisNF
no factor from 2^67 to 2^68
2014-03-30ramgeisNF
no factor from 2^66 to 2^67
2012-10-02dbaughNF
no factor from 2^65 to 2^66
2012-10-02dbaughNF
no factor from 2^64 to 2^65
2012-08-16NesowaNF-PM1
B1=110000, B2=2007500, E=6
2009-06-26Carsten KossendeyNF-PM1
B1=50000, B2=762500, E=6