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

PrimeNet Exponent Status

Exponent Range:





MnDetails
529423
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
22235767824.4old
836749222876953167166397932686.12018-12-07 13:07:05
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-27Oliver Kruse3D7B8A57E9FEFDF01013
Factored
No proof (small exponent)
2017-11-03kkmrkkblmbrbk3D7B8A57E9FEFDF0114551513
Verified
No proof (small exponent)
2018-12-07Oliver Kruse910881139776EDD6224083453
Verified
No proof (small exponent)
2018-12-08storm5510910881139776EDD6249258553
History
DateUserTypeResult
2021-08-30ViliamFNF-PM1B1=15000000, B2=1815000000
2018-12-08storm5510C-PRPM529423/22235767/83674922287695316716639793 : 910881139776EDD6
2018-12-07Oliver KruseC-PRPM529423/22235767/83674922287695316716639793 : 910881139776EDD6
2018-12-07TJAOIF-ECMFactor: 83674922287695316716639793
2017-11-03kkmrkkblmbrbkC-PRPM529423/22235767 : 3D7B8A57E9FEFDF0
2017-09-27Oliver KruseC-PRPM529423/22235767 : 3D7B8A57E9FEFDF0
2016-03-17alpertronNF-PM1B1=1500000, B2=50000000, E=12