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

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MnDetails
2374081
Composite, with 6 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
113955889926.8old
625760269991135.92008-07-14 20:23:25
72707227739031342.72008-07-14 20:23:25
9117139771136091549.72014-05-08 12:36:31
23097917227472987931961.02016-03-22 12:41:16
493534192037004282312065.42018-05-13 10:35:32
P-1 factors
DateFactorsB1B2
2018-05-1349353419203700428231
200000060000000
ECM
DigitsB1Curves
2550000280 / 280
30250000121 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-12Oliver Kruse1A9041F0FDEF570D597111153
Factored
PRP without proof (not generated)
2017-11-26kkmrkkblmbrbk1A9041F0FDEF570D581450753
Verified
PRP without proof (not generated)
2018-05-14storm55101A9041F0FDEF570D688704653
History
DateUserTypeResult
2018-05-14storm5510C-PRPM2374081/113955889/62576026999/7270722773903/911713977113609/2309791722747298793/49353419203700428231 : 1A9041F0FDEF570D
2018-05-13alpertronF-PM1Factor: 49353419203700428231 / B1=2000000, B2=60000000
2017-11-26kkmrkkblmbrbkC-PRPM2374081/113955889/62576026999/7270722773903/911713977113609/2309791722747298793 : 1A9041F0FDEF570D
2017-10-12Oliver KruseC-PRPM2374081/113955889/62576026999/7270722773903/911713977113609/2309791722747298793 : 1A9041F0FDEF570D
2016-03-22TJAOIFFactor: 2309791722747298793
2014-05-08TJAOIFFactor: 911713977113609
2008-07-14George WoltmanF-ECMFactor: 7270722773903
2008-07-14George WoltmanF-ECMFactor: 62576026999