| 5189269 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 77 / 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 | 1999-01-17 | Aaron Dickinson | 511544B26B0C887F | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-05-17 | EDNY | 511544B26B0C887F | 68635 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-30 | Torchwood Institute | 210A2E6F67CB2AF8 | 1 | 5063704 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-30 | Pappy | CERT | Proof certified good | | 2025-01-30 | Torchwood Institute | C-PRP | M5189269/13739472855958717506953 : 210A2E6F67CB2AF8 Proof Certified Good
Proof Power: 7
| | 2025-01-25 | fordobr | F-ECM | Factor: 13739472855958717506953 / ECM curve 32, B1=50000, B2=88250000, Edwards Sigma=1821234783889526 | | 2024-09-30 | Andrew B | NF | no factor TF: 71-72 | | 2022-07-18 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-02-01 | mikr | NF | no factor TF: 70-71 | | 2022-01-20 | Gordon Spence | NF | no factor TF: 69-70 | | 2020-10-12 | TJAOI | NF | no factor TF: 68-69 | | 2018-06-20 | ramgeis | NF | no factor TF: 67-68 | | 2018-01-31 | Squeeky_Squirrel | NF-PM1 | B1=310000, B2=9222500, E=12 | | 2016-06-10 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-09 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-19 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-19 | VictordeHollander | NF | no factor TF: 63-64 | | 2009-10-11 | USAFSS | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-08-20 | Carsten Kossendey | NF-PM1 | B1=25000, B2=337500 | | 2009-06-20 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-05-17 | -anonymous- | C-LL | 511544B26B0C887F | | 1999-01-17 | -anonymous- | C-LL | 511544B26B0C887F | | 1998-05-23 | MadPoo 🙂 | NF | no factor TF: 1-62 | | 1998-03-31 | -anonymous- | NF | no factor TF: 1-61 |
|
