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

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MnStatusDetails
2832443Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
254919871927.9old
16541467131030.62008-09-07 19:42:11
38187172010855797911961.72016-05-25 11:22:48
ECM
DigitsB1Curves
255000092 / 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
Verified2017-10-22Oliver KruseE8F987605BBEB4C83145019353
Verified2017-12-07kkmrkkblmbrbkE8F987605BBEB4C8359801253
History
DateUserTypeResult
2023-01-31USAFSSNF-PM1
B1=360000, B2=287380170
2017-12-07kkmrkkblmbrbkC-PRP
M2832443/254919871/1654146713/3818717201085579791 : E8F987605BBEB4C8
PRP: Verified
PRP without proof (not generated)
2017-10-22Oliver KruseC-PRP
M2832443/254919871/1654146713/3818717201085579791 : E8F987605BBEB4C8
PRP: Verified
PRP without proof (not generated)
2016-05-25TJAOIF
Factor: 3818717201085579791 / TF: 61-62
2008-09-07Will EdgingtonF
Factor: 1654146713