Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnDetails
2435863
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
511531231928.9old
ECM
DigitsB1Curves
2550000138 / 280
Estimated T-Level: 22.5
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-13Oliver Kruse00008497BF69ED65198631153
Verified
PRP without proof (not generated)
2017-11-27storm551000008497BF69ED651217741653
History
DateUserTypeResult
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRP
M2435863/511531231 : 00008497BF69ED65
2017-10-13Oliver KruseC-PRP
M2435863/511531231 : 00008497BF69ED65