| 5283269 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 75 / 280 |
Estimated T-Level: 21.3 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-10-04 | Albrecht Heeffer | 1DAD82825438149B | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-08-17 | Michael Schiansky | 1DAD82825438149B | 1711594 | Linux 32-bit,Prime95,v19,(aka WV2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-25 | BrianX | 4AE7EA3AEEA938AD | 1 | 2410054 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-25 | doctor_e | CERT | Proof certified good | | 2025-02-25 | BrianX | C-PRP | M5283269/41494387587948846389207 : 4AE7EA3AEEA938AD Proof Certified Good
Proof Power: 7
| | 2025-02-16 | fordobr | F-ECM | Factor: 41494387587948846389207 / ECM curve 34, B1=50000, B2=64857975, Edwards Sigma=2352943205030361 | | 2021-10-11 | axn | NF-PM1 | B1=8000000, B2=400000000 | | 2021-09-16 | SRBase | NF | no factor TF: 71-72 | | 2021-09-06 | SRBase | NF | no factor TF: 70-71 | | 2021-08-22 | SRBase | NF | no factor TF: 69-70 | | 2020-10-12 | TJAOI | NF | no factor TF: 68-69 | | 2019-07-01 | USAFSS | NF-PM1 | B1=315000, B2=9292500 | | 2018-06-17 | ramgeis | NF | no factor TF: 67-68 | | 2016-06-07 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-14 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-22 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-22 | VictordeHollander | NF | no factor TF: 63-64 | | 2009-11-05 | USAFSS | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-06-04 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-08-17 | Stefan Rink | C-LL | 1DAD82825438149B | | 2000-05-17 | -anonymous- | NF-PM1 | B1=20000, B2=20000 | | 1998-10-04 | Albrecht Heeffer | C-LL | 1DAD82825438149B | | 1998-06-01 | MadPoo 🙂 | NF | no factor TF: 1-62 | | 1998-02-24 | -anonymous- | NF | no factor TF: 1-61 |
|
