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
9633553
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 268
Factored
FactorDigitsBitsDate
394785461734430176492065.12015-04-29 14:59:36
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
Factored2000-10-22Hakan Hjalmers27542615B1ECE6C87978656Windows,Prime95,v19,(aka WV1)
Factored2003-06-09van27542615B1ECE6C89347814Windows,Prime95,v23,(aka WZ1)
Factored2003-06-17van27542615B1ECE6C81820233Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C86377276Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C88584094Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C8837866Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C85861977Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C83427777Windows,Prime95,v23,(aka WZ1)
Factored2003-06-23van27542615B1ECE6C86149966Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C88628989Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C81893689Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C86545260Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C84198119Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C87758895Windows,Prime95,v23,(aka WZ1)
Factored2003-06-30van27542615B1ECE6C8340788Windows,Prime95,v23,(aka WZ1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2019-10-05Niels_Mache_Nextcloud138E42E1282FD55D1593709453
Verified
Certified Good
2020-12-17storm5510138E42E1282FD55D1865315953
History
DateUserTypeResult
2025-12-05Mingye WangNFno factor TF: 68-69
2020-12-17Theo PolidanoCERT
Proof certified good
2020-12-17storm5510C-PRPM9633553/39478546173443017649 : 138E42E1282FD55D
Proof Certified Good

Proof Power: 8

2019-10-05Niels_Mache_NextcloudC-PRPM9633553/39478546173443017649 : 138E42E1282FD55D
2015-04-29VictordeHollanderFFactor: 39478546173443017649 / TF: 65-66
2013-08-28NesowaNFno factor TF: 64-65
2013-02-09NesowaNF-PM1B1=115000, B2=2185000, E=6
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-30-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-23-anonymous-C-LL27542615B1ECE6C8
2003-06-17-anonymous-C-LL27542615B1ECE6C8
2003-06-09-anonymous-C-LL27542615B1ECE6C8
2003-06-06-anonymous-NF-PM1B1=50000, B2=650000
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=50000, B2=650000
2003-06-06-anonymous-NF-PM1B1=50000, B2=775000
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=50000, B2=825000
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=50000, B2=775000
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=50000, B2=775000
2003-06-06-anonymous-NF-PM1B1=55000, B2=921250, E=6
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2003-06-06-anonymous-NF-PM1B1=50000, B2=825000
2003-06-06-anonymous-NF-PM1B1=50000, B2=775000
2003-06-06-anonymous-NF-PM1B1=50000, B2=775000
2003-06-06-anonymous-NF-PM1B1=50000, B2=825000
2003-06-06-anonymous-NF-PM1B1=55000, B2=880000, E=6
2000-10-22-anonymous-C-LL27542615B1ECE6C8
1999-08-16delongNFno factor TF: 1-64