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

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MnStatusDetails
2809559Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
3041611241848631991858.1old
838988619070562181514632376.22024-10-12 04:10:06
ECM
DigitsB1Curves
255000090 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-21Oliver Kruse38659EC571DB150E1214747453
Verified (Factored)2017-12-06ATH38659EC571DB150E1233683253
Verified2024-10-12Odicin38659EC571DB150E2103730053
History
DateUserTypeResult
2024-10-12ikeCERT
PRP Certification
Proof certified good
2024-10-12OdicinC-PRP
M2809559/304161124184863199/83898861907056218151463 : 38659EC571DB150E
PRP proof power = 7
PRP: Verified
Proof certified good
2024-10-12OdicinF-ECM
Factor: 83898861907056218151463 / (ECM curve 42, B1=50000, B2=86479575, Edwards Sigma=7851413534179926)
2022-08-21USAFSSNF-PM1
B1=288000, B2=226423890
2017-12-06ATHC-PRP
M2809559/304161124184863199 : 38659EC571DB150E
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-21Oliver KruseC-PRP
M2809559/304161124184863199 : 38659EC571DB150E
PRP: Verified (Factored)
PRP without proof (not generated)