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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Exponent Range:





MnDetails
10059821
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 268
Factored
FactorDigitsBitsDate
4255420140323120932664992732788.52020-08-07 13:07:12
P-1 factors
DateFactorsB1B2
2020-08-07425542014032312093266499273
100000030000000
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored2000-08-10Alex Darrasse47E03E0C2003C03D6977066Windows,Prime95,v20,(aka WW1)
Factored2003-10-31hg47E03E0C2003C03D3496598Windows,Prime95,v23,(aka WZ1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2020-08-09storm5510811475A3DA6CF8841518713653
History
DateUserTypeResult
2020-08-09ATHCERT
Proof certified good
2020-08-09storm5510C-PRPM10059821/425542014032312093266499273 : 811475A3DA6CF884
Proof Certified Good

Proof Power: 8

2020-08-07ViliamFF-PM1Factor: 425542014032312093266499273 / B1=1000000, B2=30000000
2020-06-22ViliamFNFno factor TF: 69-70
2017-10-04ramgeisNFno factor TF: 68-69
2017-01-04mikrNFno factor TF: 67-68
2015-11-10VictordeHollanderNFno factor TF: 66-67
2015-04-21ThaNFno factor TF: 65-66
2011-04-27James HeinrichNF-PM1B1=110000, B2=4400000, E=6
2011-04-25James HeinrichNFno factor TF: 64-65
2003-10-31-anonymous-C-LL47E03E0C2003C03D
2003-09-09-anonymous-NF-PM1B1=55000
2000-08-10-anonymous-C-LL47E03E0C2003C03D
1999-08-07pyropunkNFno factor TF: 1-64