| 5355019 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 18 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^63 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-08-09 | Andy Warner | B495FA3BCE0C3557 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-08-01 | Binary Digits | B495FA3BCE0C3557 | 303669 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-09 | Resolver | 4FD5C4BE8720E1ED | 1 | 4597268 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-09 | ohne-makler | CERT | Proof certified good | | 2025-03-09 | Resolver | C-PRP | M5355019/58418848417700299166719 : 4FD5C4BE8720E1ED Proof Certified Good
Proof Power: 7
| | 2025-03-03 | fordobr | F-ECM | Factor: 58418848417700299166719 / ECM curve 5, B1=50000, B2=60054225, Edwards Sigma=8472923128674711 | | 2024-05-01 | Random GPUs | NF | no factor TF: 71-72 | | 2022-08-11 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-02-18 | mikr | NF | no factor TF: 70-71 | | 2021-10-27 | TJAOI | NF | no factor TF: 69-70 | | 2021-06-19 | Dylan Delgado | NF-PM1 | B1=520000, B2=47320000 | | 2020-09-21 | TJAOI | NF | no factor TF: 68-69 | | 2019-06-17 | USAFSS | NF-PM1 | B1=320000, B2=10160000 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-08-09 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-18 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-23 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-23 | VictordeHollander | NF | no factor TF: 63-64 | | 2010-09-22 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=960000, E=6 | | 2009-08-25 | Carsten Kossendey | NF-PM1 | B1=25000, B2=343750 | | 2009-05-23 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-08-01 | binarydigits | C-LL | B495FA3BCE0C3557 | | 1998-08-09 | -anonymous- | C-LL | B495FA3BCE0C3557 | | 1998-03-31 | pheede | NF | no factor TF: 1-62 | | 1998-03-09 | pheede | NF | no factor TF: 1-62 |
|
