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

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MnStatusDetails
25980421Composite, with 6 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
155882527927.2old
85215780891033.02008-09-08 21:41:45
7357655227211239.42008-09-08 21:41:45
130733478472011443.62008-10-01 01:50:25
15819875327732891650.52014-06-02 12:27:13
18447611853123611247772270.62023-02-02 14:35:32
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-04-24DobriEADA5BA98F6344CB62057707853
History
DateUserTypeResult
2023-04-24curtiscCERT
PRP Certification
Proof certified good
2023-04-24DobriC-PRP
M25980421/155882527/8521578089/735765522721/13073347847201/1581987532773289/1844761185312361124777 : EADA5BA98F6344CB
PRP proof power = 8
PRP: Verified
Proof certified good
2023-04-21DobriNF-PM1
B1=5000000, B2=5000773470
2023-04-20DobriNF
no factor from 2^71 to 2^72
2023-02-02LordJuliusF
Factor: 1844761185312361124777 / TF: 70-71
2023-02-02LordJuliusNF
Redundant composite factor (155882527*13073347847201) from 2^70 to 2^71
2023-02-02LordJuliusNF
no factor from 2^69 to 2^70
2023-02-02LordJuliusNF
no factor from 2^68 to 2^69
2023-02-02LordJuliusNF
no factor from 2^67 to 2^68
2014-06-02TJAOIF
Factor: 1581987532773289
2008-10-01markrF
Factor: 13073347847201
2008-09-08Will EdgingtonF
Factor: 735765522721
2008-09-08Will EdgingtonF
Factor: 8521578089