| 5189537 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 56 / 280 |
Estimated T-Level: 21.0 ⓘ TF below 2^65 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-10-07 | Gordon Bower | 5D2086D55B13EB77 | 4529426 | Windows,Prime95,v18,(aka WU1) | | Factored | 2001-06-09 | Ola Svallmark | 5D2086D55B13EB77 | 3767378 | Windows,Prime95,v20,NT service,(aka WW5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-30 | Torchwood Institute | 40EDF1E12F70413A | 1 | 621293 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-30 | Grant McCracken | CERT | Proof certified good | | 2025-01-30 | Torchwood Institute | C-PRP | M5189537/103676975220060698339167 : 40EDF1E12F70413A Proof Certified Good
Proof Power: 7
| | 2025-01-25 | fordobr | F-ECM | Factor: 103676975220060698339167 / ECM curve 23, B1=50000, B2=88280115, Edwards Sigma=5126779424588208 | | 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 | | 2018-02-01 | 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 | | 2009-10-12 | USAFSS | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-06-20 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2001-06-09 | -anonymous- | C-LL | 5D2086D55B13EB77 | | 2001-04-01 | -anonymous- | NF-PM1 | B1=20000, B2=190000 | | 1999-10-07 | Gordon Bower | C-LL | 5D2086D55B13EB77 | | 1998-06-14 | -anonymous- | NF | no factor TF: 1-61 | | 1998-05-23 | MadPoo 🙂 | NF | no factor TF: 1-62 | | 1998-01-26 | -anonymous- | NF | no factor TF: 1-61 | | 1998-01-21 | -anonymous- | NF | no factor TF: 1-61 |
|
