| 4159319 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 180 / 280 |
Estimated T-Level: 23.2 ⓘ TF below 2^72 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | John Lloyd | D96D9742192773E0 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 2000-01-12 | Samuel H. Lipoff | D96D9742192773E0 | 848266 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-17 | fordobr | D02C50D50659D143 | 1 | 2140714 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-17 | Fabrice Bellet | CERT | Proof certified good | | 2025-03-17 | fordobr | C-PRP | M4159319/778562942063453710706366071 : D02C50D50659D143 Proof Certified Good
Proof Power: 7
| | 2025-03-17 | fordobr | F-ECM | Factor: 778562942063453710706366071 / ECM curve 23, B1=91485, B2=194573610, Edwards Sigma=7994037902702904 | | 2024-12-28 | bayanne | NF | no factor TF: 71-72 | | 2022-11-17 | DRobinsonPE | NF-PM1 | B1=6200000, B2=33075839160 | | 2022-08-16 | Kevin_9611 | NF-PM1 | B1=500000, B2=252569460 | | 2022-05-10 | mikr | NF | no factor TF: 70-71 | | 2021-06-27 | axn | NF | no factor TF: 69-70 | | 2021-06-27 | axn | NF | no factor TF: 68-69 | | 2020-11-27 | Carlos Pinho | NF-PM1 | B1=153000, B2=4009000 | | 2018-11-29 | Yxinity | NF | no factor TF: 67-68 | | 2017-12-18 | Yxinity | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-04 | snme2pm1 | NF | no factor TF: 65-66 | | 2013-11-01 | David Campeau | NF | no factor TF: 64-65 | | 2013-10-03 | Jayder | NF | no factor TF: 63-64 | | 2013-08-02 | Squeeky_Squirrel | NF-PM1 | B1=125000, B2=2375000, E=6 | | 2011-08-12 | USAFSS | NF-PM1 | B1=45000, B2=630000, E=6 | | 2011-07-17 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-01-19 | Grant McCracken | NF | no factor TF: 61-62 | | 2009-08-01 | Carsten Kossendey | NF-PM1 | B1=25000, B2=325000 | | 2001-08-31 | David Campeau | NF | no factor TF: 1-61 | | 2000-01-12 | -anonymous- | C-LL | D96D9742192773E0 |
|
