| 8326859 | 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 | 1999-12-01 | Ken Kiefer | 77F6DFCC259D0B39 | 2417513 | Windows,Prime95,v18,NT service,(aka WU5) | | Factored | 2002-12-02 | Carsten Straaberg | 77F6DFCC259D0B39 | 7942547 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-14 | Oliver Kruse | 37838780C11F5BC5 | 1 | 5120490 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-19 | ATH | 37838780C11F5BC5 | 1 | 3531299 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-19 | ATH | C-PRP | M8326859/55867073649493388137 : 37838780C11F5BC5 | | 2018-10-14 | Oliver Kruse | C-PRP | M8326859/55867073649493388137 : 37838780C11F5BC5 | | 2015-05-28 | VictordeHollander | F | Factor: 55867073649493388137 / TF: 65-66 | | 2014-01-07 | David Campeau | NF | no factor TF: 64-65 | | 2012-07-31 | firejuggler | NF-PM1 | B1=95000, B2=1662500, E=6 | | 2002-12-02 | -anonymous- | C-LL | 77F6DFCC259D0B39 | | 2002-09-14 | -anonymous- | NF-PM1 | B1=40000, B2=540000 | | 1999-12-01 | -anonymous- | C-LL | 77F6DFCC259D0B39 | | 1999-10-07 | -anonymous- | NF | no factor TF: 1-64 | | 1999-02-14 | -anonymous- | NF | no factor TF: 1-63 | | 1998-09-06 | -anonymous- | NF | no factor TF: 1-62 |
|
