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

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MnStatusDetails
11209811Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1166690633276696485479072849976932103.22024-05-28 09:25:59
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)2001-07-07Benoit GermainE1CAC5B872FA0FBD349542
Verified (Factored)2004-10-18Robert TjiaE1CAC5B872FA0FBD4029941
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-05-28vsh50FEDCD74022D1861740593953
P-1 factors
DateFactorB1B2
2024-05-28116669063327669648547907284997691000000020013932400
History
DateUserTypeResult
2024-05-28Nicolas_BoeglenCERT
PRP Certification
Proof certified good
2024-05-28vshC-PRP
M11209811/11666906332766964854790728499769 : 50FEDCD74022D186
PRP proof power = 8
PRP: Verified
Proof certified good
2024-05-28vshF-PM1
Factor: 11666906332766964854790728499769 / (P-1, B1=10000000, B2=20013932400)
2024-05-22vshNF-PM1
B1=5000000, B2=11282028450
2024-04-08vshNF-PM1
B1=2150000, B2=2783379060
2021-10-30SRBaseNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-07SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2015-12-28VictordeHollanderNF
no factor from 2^66 to 2^67
2015-02-28NumberwangNF
no factor from 2^65 to 2^66
2013-11-23lycornNF
no factor from 2^64 to 2^65
2012-05-14James HeinrichNF-PM1
B1=215000, B2=5160000, E=6