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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
29531Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
59063515.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000951 / 4588
Estimated T-Level: 36.0
TF below 2^115 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse772C3D74C671CAE91013
Verified2017-10-12kkmrkkblmbrbk772C3D74C671CAE912847613
Verified2020-04-17Oliver KruseE7762893FD4D367F11403453
Verified2022-05-12Jorge CoveiroE7762893FD4D367F11178953
History
DateUserTypeResult
2023-02-13nordiNF-PM1
B1=3000000000, B2=925584566816910
2022-09-30nordiNF-PM1
B1=3000000000
2022-05-12Jorge CoveiroC-PRP
M29531/59063 : E7762893FD4D367F
PRP: Verified
PRP without proof (small exponent)
2021-05-10ATHNF-PP1
Start=2/7, B1=100000000, B2=10000000000
2020-04-17Oliver KruseC-PRP
M29531/59063 : E7762893FD4D367F
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M29531/59063 : 772C3D74C671CAE9
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M29531/59063 : 772C3D74C671CAE9
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M29531/59063 : 772C3D74C671CAE9
PRP without proof (not generated)
2017-01-03kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12