| 4298183 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 78 / 280 |
Estimated T-Level: 21.4 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-04-21 | Andy Huebner | 4BEFFC6196C8AC02 | 0 | Windows,Prime95,v15,NT service,(aka WR5) | | Bad | 2000-08-01 | Tom Mossberg | 8BF507FC51B8440A | 3593743 | Windows,Prime95,v19,(aka WV1) | | Factored | 2001-08-12 | Paul Victor Novarese | 4BEFFC6196C8AC02 | 2692637 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-12 | fordobr | 2DC54EBB7BD58978 | 1 | 3755359 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-12 | dss | CERT | Proof certified good | | 2025-01-12 | fordobr | C-PRP | M4298183/16128306672498807141239273 : 2DC54EBB7BD58978 Proof Certified Good
Proof Power: 7
| | 2025-01-12 | fordobr | F-ECM | Factor: 16128306672498807141239273 / ECM curve 5, B1=69842, B2=117709515, Edwards Sigma=8204593593948545 | | 2024-11-17 | TheJudger | NF | no factor TF: 72-73 | | 2024-11-17 | TheJudger | NF | no factor TF: 71-72 | | 2022-08-09 | DRobinsonPE | NF-PM1 | B1=6200000, B2=35561477490 | | 2021-01-24 | -anonymous- | NF | no factor TF: 70-71 | | 2021-01-23 | -anonymous- | NF | no factor TF: 69-70 | | 2021-01-23 | -anonymous- | NF | no factor TF: 68-69 | | 2018-11-18 | chuenkit | NF | no factor TF: 67-68 | | 2018-04-27 | chuenkit | NF | no factor TF: 66-67 | | 2016-12-19 | Squeeky_Squirrel | NF-PM1 | B1=265000, B2=7751250, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-13 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-05-16 | lycorn | NF | no factor TF: 64-65 | | 2014-05-05 | Jayder | NF | no factor TF: 63-64 | | 2012-02-03 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-12-10 | Squeeky_Squirrel | NF-PM1 | B1=80000, B2=1420000, E=6 | | 2010-12-18 | markr | NF | no factor TF: 61-62 | | 2002-04-20 | Net_Force | NF | no factor TF: 1-61 | | 2001-08-12 | -anonymous- | C-LL | 4BEFFC6196C8AC02 | | 2001-03-25 | -anonymous- | NF-PM1 | B1=25000, B2=312500 | | 2000-08-01 | twmoss | C-LL | 8BF507FC51B8440A | | 1998-04-21 | -anonymous- | C-LL | 4BEFFC6196C8AC02 | | 1998-03-23 | -anonymous- | NF | no factor TF: 1-60 |
|
