| 8333671 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-10-21 | Juergen Mueller | D5D915A6A4D8E160 | 584170 | Windows,Prime95,v19,NT service,(aka WV5) | | Factored | 2003-01-25 | Matt Perry | D5D915A6A4D8E160 | 1557852 | Windows,Prime95,v22,(aka WY1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-16 | Oliver Kruse | 8EB425849FF7D781 | 1 | 1329732 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-23 | Wentao Huang | 8EB425849FF7D781 | 1 | 7188845 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-23 | Wentao Huang | C-PRP | M8333671/142408346179113936569 : 8EB425849FF7D781 | | 2018-10-16 | Oliver Kruse | C-PRP | M8333671/142408346179113936569 : 8EB425849FF7D781 | | 2015-12-27 | snme2pm1 | F | Factor: 142408346179113936569 / TF: 66-67* | | 2015-05-28 | VictordeHollander | NF | no factor TF: 65-66 | | 2014-01-07 | David Campeau | NF | no factor TF: 64-65 | | 2012-08-04 | firejuggler | NF-PM1 | B1=95000, B2=1662500, E=6 | | 2003-01-25 | Matt Perry | C-LL | D5D915A6A4D8E160 | | 2003-01-16 | Matt Perry | NF | no factor TF: 1-64 | | 2003-01-16 | Matt Perry | NF-PM1 | B1=45000, B2=663750 | | 1999-10-21 | Team_Deutschland | C-LL | D5D915A6A4D8E160 | | 1999-04-02 | -anonymous- | NF | no factor TF: 1-63 | | 1998-09-20 | PathFinder | NF | no factor TF: 1-62 |
|
