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
5849
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
4105999722.0old
244454189851175106732064.4old
612207417231705975588442819992885662337122.22016-10-22 20:47:53
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006121 / 16550
Estimated T-Level: 46.8
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-20kkmrkkblmbrbk1ADF1D2F614CF8FB3013
Verified
No proof (small exponent)
2017-09-26George Woltman1ADF1D2F614CF8FB3195813
Verified
No proof (small exponent)
2017-10-02kkmrkkblmbrbk1ADF1D2F614CF8FB3013
Verified
No proof (small exponent)
2020-04-17Oliver Kruse7C6F2CCDD604A0683267653
Verified
No proof (small exponent)
2024-02-03Wentao Huang7C6F2CCDD604A0683320053
History
DateUserTypeResult
2025-05-29masserNF-PP1Start=82/41, B1=1500000000, B2=1498500000000
2024-02-03Wentao HuangC-PRP
M5849/4105999/24445418985117510673/6122074172317059755884428199928856623 : 7C6F2CCDD604A068
2023-07-22-anonymous-NF-PM1B1=42000000000, B2=171618937469779800
2021-07-05ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M5849/4105999/24445418985117510673/6122074172317059755884428199928856623 : 7C6F2CCDD604A068
2017-10-02kkmrkkblmbrbkC-PRPM5849/4105999/24445418985117510673/6122074172317059755884428199928856623 : 1ADF1D2F614CF8FB
2017-09-26George WoltmanC-PRPM5849/4105999/24445418985117510673/6122074172317059755884428199928856623 : 1ADF1D2F614CF8FB
2017-09-20kkmrkkblmbrbkC-PRPM5849/4105999/24445418985117510673/6122074172317059755884428199928856623 : 1ADF1D2F614CF8FB
2016-10-22kkmrkkblmbrbkF-ECMFactor: 6122074172317059755884428199928856623