Marin Mersenne 2^P-1
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MnDetails
821
Composite, with 4 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
419273207928.6old
1098407214279771546.61982-01-01 00:00:00
2861214802195174731858.0old
2534833058906132243605949989471893057779803188008186756654722362204.02008-06-25 13:42:45
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_4013
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM821/419273207/109840721427977/286121480219517473/25348330589061322436059499894718930577798031880081867566547223
PRP Cofactor
2008-11-18MattF-PM1Factor: 46053271532301536312239
2008-06-25-anonymous-F-ECMFactor: 25348330589061322436059499894718930577798031880081867566547223
2008-04-23MattF-ECMFactor: 46053271532301536312239
2005-01-20-anonymous-F-PM1Factor: 46053271532301536312239
2005-01-20-anonymous-F-PM1Factor: 109840721427977
2005-01-20-anonymous-F-PM1Factor: 13176830219773481166085235919000444252047
2005-01-20-anonymous-F-PM1Factor: 286121480219517473