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

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MnStatusDetails
11268811Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
202838599927.6old
222897081591134.42008-09-08 07:29:13
1122181744376584811856.62015-04-20 11:20:55
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-06-23Luigi Morelli5E4DAF6AB41602953923999353
History
DateUserTypeResult
2025-06-02vshNF
no factor from 2^71 to 2^72
2025-05-19vshNF-PM1
B1=10000000, B2=20021278200
2025-04-03vshNF
no factor from 2^70 to 2^71
2025-03-11vshNF
no factor from 2^69 to 2^70
2025-02-06vshNF
no factor from 2^68 to 2^69
2024-06-23vshNF-PM1
B1=625000, B2=296898420
2024-05-19vshNF-PM1
B1=312500, B2=61499130
2021-06-23GregCERT
PRP Certification
Proof certified good
2021-06-23Luigi MorelliC-PRP
M11268811/202838599/22289708159/112218174437658481 : 5E4DAF6AB4160295
PRP proof power = 8
PRP: Verified
Proof certified good
2015-04-20TJAOIF
Factor: 112218174437658481 / TF: 56-57
2008-09-08Will EdgingtonF
Factor: 22289708159