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

PrimeNet Exponent Status

Exponent Range:





MnDetails
6323
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-02-17VGDominionECMC44S178.92 %2026-02-222026-02-23
Factored
FactorDigitsBitsDate
12647513.6old
1064336830201147271856.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003247 / 16550
Estimated T-Level: 46.0 ⓘ
TF below 2^148 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver KruseE2FB8E2EF1B5A2FF2013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbkE2FB8E2EF1B5A2FF2127713
Verified
No proof (small exponent)
2020-04-17Oliver KruseA2198BA83A19BB632513653
Factored
No proof (small exponent)
2022-05-12Jorge CoveiroA2198BA83A19BB63130253
Verified
No proof (small exponent)
2024-02-03Wentao HuangA2198BA83A19BB632491353
History
DateUserTypeResult
2025-03-19masserNF-PP1Start=115/59, B1=1000000000, B2=999000000000
2025-03-11masserNF-PP1Start=6/5, B1=1000000000, B2=999000000000
2025-03-02masserNF-PP1Start=2/7, B1=1000000000, B2=999000000000
2024-02-03Wentao HuangC-PRPM6323/12647/106433683020114727 : A2198BA83A19BB63
2023-08-04-anonymous-NF-PM1B1=39000000000, B2=163105468633407300
2022-05-12Jorge CoveiroC-PRPM6323/12647 : A2198BA83A19BB63
2021-08-01ViliamFNF-PM1B1=500000000, B2=90500000000
2020-04-17Oliver KruseC-PRPM6323/12647/106433683020114727 : A2198BA83A19BB63
2017-10-12kkmrkkblmbrbkC-PRPM6323/12647/106433683020114727 : E2FB8E2EF1B5A2FF
2017-09-21Oliver KruseC-PRPM6323/12647/106433683020114727 : E2FB8E2EF1B5A2FF
2017-09-21Oliver KruseC-PRPM6323/12647/106433683020114727 : E2FB8E2EF1B5A2FF