| 5234477 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 85 / 280 |
Estimated T-Level: 21.5 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Stephen Wood | F7DF5B7CF9D73DA9 | 0 | Linux 32-bit,Prime95,v14,(aka WQ2) | | Factored | 2000-06-11 | Michael T. Nelson | F7DF5B7CF9D73DA9 | 3853340 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-03 | Perig | 9FD230A36D6A49F1 | 1 | 1775186 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-03 | jingfired | CERT | Proof certified good | | 2025-03-03 | Perig | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-26 | Andrey Dobrynin | F-ECM | Factor: 35765042710789087336051207 / ECM curve 37, B1=50000, B2=60054225, Edwards Sigma=7657434173912750 | | 2025-02-09 | Jason Lynch | NF-PM1 | B1=16898000, B2=212085103230 | | 2021-09-27 | axn | NF-PM1 | B1=8000000, B2=400000000 | | 2021-09-16 | SRBase | NF | no factor TF: 71-72 | | 2021-08-23 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2020-10-19 | TJAOI | NF | no factor TF: 68-69 | | 2019-02-08 | USAFSS | NF-PM1 | B1=315000, B2=9213750, E=12 | | 2018-06-17 | ramgeis | NF | no factor TF: 67-68 | | 2016-06-01 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-11 | 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 | | 2010-06-17 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-08-20 | Carsten Kossendey | NF-PM1 | B1=25000, B2=337500 | | 2009-06-14 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2002-10-07 | David Campeau | NF | no factor TF: 1-62 | | 2000-06-11 | -anonymous- | C-LL | F7DF5B7CF9D73DA9 |
|
