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

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MnStatusDetails
11001919Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
69121096386171342.7old
5565997118849198891858.92015-10-14 11:29:56
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-04-21LaurVF138C1098BE0584A2857048653
History
DateUserTypeResult
2024-05-07cramsey87NF-PM1
B1=85000, B2=34646040
2024-05-04cramsey87NF
no factor from 2^69 to 2^70
2024-05-04cramsey87NF
no factor from 2^68 to 2^69
2022-06-23LordJuliusNF
no factor from 2^66 to 2^67
2022-06-23LordJuliusNF
no factor from 2^65 to 2^66
2022-06-23LordJuliusNF
no factor from 2^64 to 2^65
2021-12-16Lisander ViaeneNF
no factor from 2^67 to 2^68
2021-04-21ky0urakuCERT
PRP Certification
Proof certified good
2021-04-21LaurVC-PRP
M11001919/6912109638617/556599711884919889 : F138C1098BE0584A
PRP proof power = 8
PRP: Verified
Proof certified good
2015-10-14TJAOIF
Factor: 556599711884919889 / TF: 58-59