| 5302081 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 12 / 280 |
Estimated T-Level: 20.2 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-07-29 | Andreas Pagel | F97130EEF42E96E3 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-10-07 | Lloyd Miller | F97130EEF42E96E3 | 2101509 | 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 | xyuzyz | 0C45193631B32B45 | 1 | 4886630 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-25 | KongoCache | CERT | Proof certified good | | 2025-02-25 | xyuzyz | C-PRP | M5302081/13620689723085447826601 : 0C45193631B32B45 Proof Certified Good
Proof Power: 7
| | 2025-02-19 | fordobr | F-ECM | Factor: 13620689723085447826601 / ECM curve 2, B1=50000, B2=38914785, Edwards Sigma=4273992698815265 | | 2024-02-19 | One Man | NF | no factor TF: 71-72 | | 2022-08-07 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-02-04 | mikr | NF | no factor TF: 70-71 | | 2021-12-16 | TJAOI | NF | no factor TF: 69-70 | | 2020-09-21 | TJAOI | NF | no factor TF: 68-69 | | 2019-05-22 | King | NF-PM1 | B1=750000, B2=17500000 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-06-10 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-15 | 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 | | 2010-09-05 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=990000, E=6 | | 2009-08-21 | Carsten Kossendey | NF-PM1 | B1=25000, B2=343750 | | 2009-06-02 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-10-07 | S04803 | C-LL | F97130EEF42E96E3 | | 1998-07-29 | -anonymous- | C-LL | F97130EEF42E96E3 | | 1998-02-24 | -anonymous- | NF | no factor TF: 1-62 |
|
