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

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MnStatusDetails
11868037Factored
FactorDigitsBitsDate
7486720619523904806012169.32018-02-14 16:51:48
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-03-17Gerhard H WrodniggFD863542712F58739577320
Verified (Factored)2004-06-12Paul Victor NovareseFD863542712F587310980621
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-11-22LaurV2384AE256425B44D11161658453
History
DateUserTypeResult
2021-11-22supexplorluxuryCERT
PRP Certification
Proof certified good
2021-11-22LaurVC-PRP
M11868037/748672061952390480601 : 2384AE256425B44D
PRP proof power = 8
PRP: Verified
Proof certified good
2018-02-14ConductorF-ECM
Factor: 748672061952390480601 / (ECM curve 1, B1=50000, B2=5000000)
2018-01-18ramgeisNF
no factor from 2^68 to 2^69
2018-01-18ramgeisNF
no factor from 2^67 to 2^68
2016-02-15VictordeHollanderNF
no factor from 2^66 to 2^67
2015-07-21Sid & AndyNF-PM1
B1=130000, B2=2210000, E=6
2013-11-02NesowaNF
no factor from 2^65 to 2^66
2013-10-22lycornNF
no factor from 2^64 to 2^65