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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
7583Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
58892762871032.5old
172892323108391444.0old
520321608886791445.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000002050 / 9201
Estimated T-Level: 41.1
TF below 2^132 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse454A05B7AA7FE3FB3013
Verified2017-10-02kkmrkkblmbrbk454A05B7AA7FE3FB3013
Verified2017-12-07ATH454A05B7AA7FE3FB3697913
Verified2020-04-17Oliver Kruse77CEFE8886AD56BD3690853
Verified2024-02-03Wentao Huang77CEFE8886AD56BD3359753
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M7583/5889276287/17289232310839/52032160888679 : 77CEFE8886AD56BD
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M7583/5889276287/17289232310839/52032160888679 : 77CEFE8886AD56BD
PRP: Verified
PRP without proof (small exponent)
2019-07-02Ivan MNF-PM1
B1=1000000000, B2=50000000000, E=12
2017-12-07ATHC-PRP
M7583/5889276287/17289232310839/52032160888679 : 454A05B7AA7FE3FB
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M7583/5889276287/17289232310839/52032160888679 : 454A05B7AA7FE3FB
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7583/known_factors : 454A05B7AA7FE3FB
PRP without proof (not generated)