| 5164139 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 14 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2001-06-09 | Dayton L. Silver | 392111579B6B6E25 | 937297 | Windows,Prime95,v20,(aka WW1) | | Factored | 2002-06-15 | Andrew Daviel | 392111579B6B6E25 | 0 | Linux 32-bit,Prime95,v14,(aka WQ2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-18 | Torchwood Institute | 8AADF9D7076682DE | 1 | 1217585 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-18 | mattashii | CERT | Proof certified good | | 2025-01-18 | Torchwood Institute | C-PRP | M5164139/334692059464259944361068681 : 8AADF9D7076682DE Proof Certified Good
Proof Power: 7
| | 2025-01-13 | fordobr | F-ECM | Factor: 334692059464259944361068681 / ECM curve 3, B1=50000, B2=64857975, Edwards Sigma=8197751101123479 | | 2024-10-14 | Andrew B | NF | no factor TF: 71-72 | | 2022-07-16 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-01-25 | mikr | NF | no factor TF: 70-71 | | 2022-01-16 | Gordon Spence | NF | no factor TF: 69-70 | | 2020-11-16 | TJAOI | NF | no factor TF: 68-69 | | 2018-06-20 | ramgeis | NF | no factor TF: 67-68 | | 2016-06-01 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-05-15 | Ismo Laitela | NF-PM1 | B1=1692717, B2=50781506, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-62 | | 2015-08-09 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-17 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-17 | VictordeHollander | NF | no factor TF: 63-64 | | 2009-09-30 | USAFSS | NF-PM1 | B1=55000, B2=935000, E=6 | | 2009-06-24 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2002-06-15 | -anonymous- | C-LL | 392111579B6B6E25 | | 2002-06-15 | -anonymous- | C-LL | 392111579B6B6E25 | | 2001-06-09 | dlsilver | C-LL | 392111579B6B6E25 | | 2001-05-20 | dlsilver | NF-PM1 | B1=25000, B2=262500 | | 2000-06-11 | -anonymous- | C-LL | D088F8D585675D__ |
|
