| 4409773 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 187 / 280 |
Estimated T-Level: 23.3 ⓘ TF below 2^73 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-04-21 | Leo McDonald | CFAF5779A85666B5 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 2000-06-28 | David Allen | CFAF5779A85666B5 | 1013610 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-09 | fordobr | 38FFD76E2D97A1C5 | 1 | 828229 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-09 | ohne-makler | CERT | Proof certified good | | 2025-03-09 | fordobr | C-PRP | M4409773/48067979623194176624374351 : 38FFD76E2D97A1C5 Proof Certified Good
Proof Power: 7
| | 2025-03-09 | fordobr | F-ECM | Factor: 48067979623194176624374351 / ECM curve 39, B1=74630, B2=117709515, Edwards Sigma=2013927805150009 | | 2024-11-17 | TheJudger | NF | no factor TF: 72-73 | | 2024-11-17 | TheJudger | NF | no factor TF: 71-72 | | 2024-07-01 | Jason Lynch | NF-PM1 | B1=19391000, B2=317974306650 | | 2021-08-22 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2021-08-16 | axn | NF-PM1 | B1=10000000, B2=500000000 | | 2021-07-01 | TJAOI | NF | no factor TF: 68-69 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2018-01-23 | BloodERazor | NF | no factor TF: 66-67 | | 2016-07-29 | mikr | NF-PM1 | B1=1800000, B2=68000000, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-21 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-08-13 | lycorn | NF | no factor TF: 64-65 | | 2014-08-13 | Jayder | NF | no factor TF: 63-64 | | 2012-02-03 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-10-29 | markr | NF | no factor TF: 61-62 | | 2010-10-10 | Oscar Östlin | NF-PM1 | B1=90000, B2=1890000, E=6 | | 2001-12-01 | David Campeau | NF | no factor TF: 1-61 | | 2000-06-28 | -anonymous- | C-LL | CFAF5779A85666B5 | | 2000-05-31 | -anonymous- | NF-PM1 | B1=20000, B2=205000 | | 1998-04-21 | -anonymous- | C-LL | CFAF5779A85666B5 |
|
