| 8319401 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 2 / 280 |
Estimated T-Level: 20.0 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-12-30 | John Crider | 9FC1C7AA747647AB | 5948886 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-09-29 | Tim Dennehey | 9FC1C7AA747647AB | 7591633 | 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) | 2018-10-10 | Oliver Kruse | 51A1E9EEB8E4D5FE | 1 | 7017973 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-18 | marssystems | 51A1E9EEB8E4D5FE | 1 | 4855831 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-18 | marssystems | C-PRP | M8319401/3227687036873511071687 : 51A1E9EEB8E4D5FE | | 2018-10-10 | Oliver Kruse | C-PRP | M8319401/3227687036873511071687 : 51A1E9EEB8E4D5FE | | 2013-06-29 | sannerud.com | F-ECM | Factor: 3227687036873511071687 | | 2012-07-30 | firejuggler | NF-PM1 | B1=95000, B2=1662500, E=6 | | 2002-09-29 | TD | C-LL | 9FC1C7AA747647AB | | 2002-09-14 | TD | NF-PM1 | B1=40000, B2=540000 | | 2002-09-14 | TD | NF | no factor TF: 1-64 | | 1999-12-30 | -anonymous- | C-LL | 9FC1C7AA747647AB | | 1999-07-27 | -anonymous- | NF | no factor TF: 1-63 | | 1998-09-13 | -anonymous- | NF | no factor TF: 1-62 |
|
