| 4467077 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 115 / 280 |
Estimated T-Level: 22.1 ⓘ TF below 2^68 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-06-29 | Stephen Whitis | 1074DB4A488A401F | 0 | Windows,Prime95,v16,NT service,(aka WS5) | | Factored | 1999-12-15 | Per M. Hansen | 1074DB4A488A401F | 3773857 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-28 | Andrey Dobrynin | E94AA74331176CCA | 1 | 1171114 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-28 | Will K | CERT | Proof certified good | | 2025-02-28 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-28 | Andrey Dobrynin | F-ECM | Factor: 3075578344056169832897761 / ECM curve 19, B1=68333, B2=117709515, Edwards Sigma=2547800943103214 | | 2024-11-17 | TheJudger | NF | no factor TF: 72-73 | | 2024-11-17 | TheJudger | NF | no factor TF: 71-72 | | 2022-08-22 | xss | NF-PM1 | B1=10712789, B2=18877701150 | | 2021-08-22 | SRBase | NF | no factor TF: 70-71 | | 2021-08-17 | SRBase | NF | no factor TF: 69-70 | | 2021-07-18 | MadPoo 🙂 | NF | no factor TF: 68-69 | | 2021-04-24 | Architects Cubed | NF-PM1 | B1=222000, B2=13874000 | | 2018-06-23 | ramgeis | NF | no factor TF: 66-67 | | 2018-06-23 | ramgeis | NF | no factor TF: 67-68 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-25 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-09-21 | monst | NF | no factor TF: 64-65 | | 2014-09-21 | Jayder | NF | no factor TF: 63-64 | | 2012-10-21 | Squeeky_Squirrel | NF-PM1 | B1=290000, B2=7467500, E=12 | | 2012-02-03 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-10-09 | markr | NF | no factor TF: 61-62 | | 2009-07-23 | Carsten Kossendey | NF-PM1 | B1=25000, B2=362500 | | 1999-12-15 | -anonymous- | C-LL | 1074DB4A488A401F | | 1998-06-29 | -anonymous- | C-LL | 1074DB4A488A401F | | 1998-06-07 | -anonymous- | NF | no factor TF: 1-61 |
|
