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

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MnDetails
10385699
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
83085593826.3old
63118540631016491652.52014-08-11 10:39:45
839640264140190301043603772686.12020-05-27 11:39:23
ECM
DigitsB1Curves
255000031 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2020-05-22riccardo uberti1530B782A4569BBC2421157953
Verified
PRP without proof (not generated)
2020-05-28Klaus Nordmann1530B782A4569BBC3439998553
History
DateUserTypeResult
2026-01-11Sid & AndyNF-PM1B1=1700000, B2=1975096200
2021-07-14riccardo ubertiNF-PP1Start=2/7, B1=750000, B2=20000000
2021-07-14riccardo ubertiNF-PP1Start=6/5, B1=750000, B2=20000000
2020-05-28Klaus NordmannC-PRPM10385699/83085593/6311854063101649/83964026414019030104360377 : 1530B782A4569BBC
2020-05-27riccardo ubertiF-ECMFactor: 83964026414019030104360377 / ECM curve 9, B1=50000, B2=14400000, Montgomery Sigma=7571541494494560
2020-05-22riccardo ubertiC-PRPM10385699/83085593/6311854063101649 : 1530B782A4569BBC
2014-08-11TJAOIFFactor: 6311854063101649