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

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Exponent Range:





MnDetails
3583
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2025-10-15PhyxickECM2025-10-151970-01-01
Factored
FactorDigitsBitsDate
33058573936071341.6old
70319287835691342.7old
103412873274660991990087512591402856975192743139.62018-10-22 22:28:35
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000002540 / 16550
Estimated T-Level: 45.8 ⓘ
TF below 2^147 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 KruseBB6833B1ABA1F26C2013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbkBB6833B1ABA1F26C2144613
Verified
No proof (small exponent)
2018-10-22rucio8360BD579899B7573120653
Verified
No proof (small exponent)
2018-10-24Oliver Kruse8360BD579899B7573206453
Verified
No proof (small exponent)
2020-04-17Oliver Kruse8360BD579899B7573151953
History
DateUserTypeResult
2025-05-03masserNF-PP1Start=134/47, B1=3100000000, B2=3096900000000
2022-06-22mikrNF-PM1B1=100000000000, B2=262205522487458550
2021-09-05Jinyuan WangNF-PM1B1=1300000000, B2=13000000000
2020-04-17Oliver KruseC-PRPM3583/3305857393607/7031928783569/1034128732746609919900875125914028569751927 : 8360BD579899B757
2018-10-24Oliver KruseC-PRPM3583/3305857393607/7031928783569/1034128732746609919900875125914028569751927 : 8360BD579899B757
2018-10-22rucioC-PRPM3583/3305857393607/7031928783569/1034128732746609919900875125914028569751927 : 8360BD579899B757
2018-10-22eteoF-ECMFactor: 1034128732746609919900875125914028569751927
2017-10-12kkmrkkblmbrbkC-PRPM3583/3305857393607/7031928783569 : BB6833B1ABA1F26C
2017-09-21Oliver KruseC-PRPM3583/3305857393607/7031928783569 : BB6833B1ABA1F26C
2017-09-21Oliver KruseC-PRPM3583/3305857393607/7031928783569 : BB6833B1ABA1F26C