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

PrimeNet Exponent Status

Exponent Range:





MnDetails
3929
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
160020313927.3old
278823842411134.7old
377620769956731445.1old
2128592801318316664941799772055007935114.02009-05-03 11:18:03
815268989400966647175346352741970472966616300179949162.52019-12-06 15:09:42
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000014537 / 40830
Estimated T-Level: 51.8 ⓘ
TF below 2^167 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver KruseD9DAC9FEA5E157F54013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbkD9DAC9FEA5E157F54013
Factored
No proof (small exponent)
2017-12-07ATHD9DAC9FEA5E157F54136113
Verified
No proof (small exponent)
2019-12-07xyuzyz69584F3819D9214B5212553
Verified
No proof (small exponent)
2019-12-08GAN69584F3819D9214B568453
Verified
No proof (small exponent)
2020-04-17Oliver Kruse69584F3819D9214B5237253
History
DateUserTypeResult
2025-05-07masserNF-PP1Start=85/11, B1=2600000000, B2=2597400000000
2023-05-15JacobZNF-PM1B1=66000000000, B2=667136464473408930
2021-08-27Seth_TrNF-PM1B1=100000000
2020-04-17Oliver KruseC-PRPM3929/160020313/27882384241/37762076995673/21285928013183166649417997720550079/8152689894009666471753463527419704729666163001799 : 69584F3819D9214B
2019-12-08GANC-PRPM3929/160020313/27882384241/37762076995673/21285928013183166649417997720550079/8152689894009666471753463527419704729666163001799 : 69584F3819D9214B
2019-12-07xyuzyzC-PRPM3929/160020313/27882384241/37762076995673/21285928013183166649417997720550079/8152689894009666471753463527419704729666163001799 : 69584F3819D9214B
2019-12-06Ryan PropperF-ECMFactor: 8152689894009666471753463527419704729666163001799
2017-12-07ATHC-PRPM3929/160020313/27882384241/37762076995673/21285928013183166649417997720550079 : D9DAC9FEA5E157F5
2017-10-02kkmrkkblmbrbkC-PRPM3929/160020313/27882384241/37762076995673/21285928013183166649417997720550079 : D9DAC9FEA5E157F5
2017-09-21Oliver KruseC-PRPM3929/known_factors : D9DAC9FEA5E157F5
2009-10-25Carsten KossendeyFFactor: 6042699380377693105649
2009-05-03unconnectedF-ECMFactor: 21285928013183166649417997720550079