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

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MnStatusDetails
11204587Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
124819099191133.5old
2478454644411237.92008-09-08 07:27:44
21429545529911271650.92014-06-12 11:28:05
10558576696422604871959.92015-12-20 16:38:53
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-06-09LaurV15CC3C45B12E128B4794696653
History
DateUserTypeResult
2025-05-28vshF
Factors: 12481909919,247845464441 / TF: 71-72
2025-04-03vshNF
no factor from 2^70 to 2^71
2025-04-03vshNF-PM1
B1=10000000, B2=20000264130
2025-02-18vshNF
no factor from 2^69 to 2^70
2025-02-02James HeinrichNF
no factor from 2^68 to 2^69
2025-01-24vshNF
no factor from 2^68 to 2^69
2024-05-13vshNF-PM1
B1=2500000, B2=1694815980
2024-05-02vshNF-PM1
B1=1400000, B2=858703560
2024-04-22vshNF-PM1
B1=700000, B2=352517880
2024-04-19vshNF-PM1
B1=350000, B2=158180880
2021-06-09curtiscCERT
PRP Certification
Proof certified good
2021-06-09LaurVC-PRP
M11204587/12481909919/247845464441/2142954552991127/1055857669642260487 : 15CC3C45B12E128B
PRP proof power = 8
PRP: Verified
Proof certified good
2015-12-20TJAOIF
Factor: 1055857669642260487 / TF: 59-60
2014-06-12TJAOIF
Factor: 2142954552991127
2008-09-08Will EdgingtonF
Factor: 247845464441