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

PrimeNet Exponent Status

Exponent Range:





MnDetails
5743
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-02-22Graham BarnesECM2026-02-222026-02-23
Factored
FactorDigitsBitsDate
643217619.3old
134329688891133.6old
2224508732359931547.7old
283248760166391591754.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000004783 / 16550
Estimated T-Level: 46.4 ⓘ
TF below 2^149 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 Kruse171B76BB4F5AED344013
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk171B76BB4F5AED344013
Verified
No proof (small exponent)
2017-12-07ATH171B76BB4F5AED344409513
Verified
No proof (small exponent)
2020-04-17Oliver KruseF8D1C458D823E09C4414453
Verified
No proof (small exponent)
2024-02-03Wentao HuangF8D1C458D823E09C4561453
History
DateUserTypeResult
2025-05-26masserNF-PP1Start=180/29, B1=2100000000, B2=2097900000000
2025-02-24mikrNF-PM1B1=500000000000, B2=1735545234797984610
2024-02-03Wentao HuangC-PRPM5743/643217/13432968889/222450873235993/28324876016639159 : F8D1C458D823E09C
2023-07-19-anonymous-NF-PM1B1=43000000000, B2=180124832351714250
2021-08-31H MichaelsonNF-PM1B1=1000000000, B2=100000000000
2020-04-17Oliver KruseC-PRPM5743/643217/13432968889/222450873235993/28324876016639159 : F8D1C458D823E09C
2017-12-07ATHC-PRPM5743/643217/13432968889/222450873235993/28324876016639159 : 171B76BB4F5AED34
2017-10-02kkmrkkblmbrbkC-PRPM5743/643217/13432968889/222450873235993/28324876016639159 : 171B76BB4F5AED34
2017-09-21Oliver KruseC-PRPM5743/known_factors : 171B76BB4F5AED34