Marin Mersenne 2^P-1
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MnStatusDetails
11261611Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
401138583831135.2old
407219853771135.22008-09-08 07:28:59
93625655370711343.12008-09-08 07:28:59
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-06-22kutens05EB35D9693DB23B3329604153
History
DateUserTypeResult
2025-06-02vshNF
no factor from 2^71 to 2^72
2025-05-26vshNF-PM1
B1=10000000, B2=20021278200
2025-04-03vshF
Factors: 40721985377,40113858383 / TF: 70-71
2025-03-11vshNF
no factor from 2^69 to 2^70
2025-02-06vshNF
no factor from 2^68 to 2^69
2024-06-24vshNF-PM1
B1=625000, B2=296898420
2024-05-19vshNF-PM1
B1=312500, B2=60859260
2021-06-22Massimo Cappelli (ik5pwa)CERT
PRP Certification
Proof certified good
2021-06-22kutensC-PRP
M11261611/40113858383/40721985377/9362565537071 : 05EB35D9693DB23B
PRP proof power = 8
PRP: Verified
Proof certified good
2008-09-08Will EdgingtonF
Factor: 9362565537071
2008-09-08Will EdgingtonF
Factor: 40721985377