| 8323213 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 16 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2000-01-12 | Ben Mathews | D37D571CEB83CE81 | 917678 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-09-22 | Ars Technica Team Prime Rib | D37D571CEB83CE81 | 4099505 | Windows,Prime95,v21,NT service,(aka WX5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-09 | ATH | 816C65A79EEEF684 | 1 | 1638278 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-19 | oodaira | 816C65A79EEEF684 | 1 | 2907681 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-03 | Stef42 | NF-PM1 | B1=1113000, B2=1520760150 | | 2021-05-12 | firejuggler | NF-PP1 | Start=6/5, B1=500000, B2=26000000 | | 2021-04-30 | firejuggler | NF-PP1 | Start=2/7, B1=500000, B2=26500000 | | 2020-04-19 | oodaira | C-PRP | M8323213/4876433156942106401390159783 : 816C65A79EEEF684 | | 2018-10-09 | ATH | C-PRP | M8323213/4876433156942106401390159783 : 816C65A79EEEF684 | | 2012-07-31 | firejuggler | F-PM1 | Factor: 4876433156942106401390159783 | | 2002-09-22 | Team Prime Rib | C-LL | D37D571CEB83CE81 | | 2002-09-22 | Team Prime Rib | NF | no factor TF: 1-64 | | 2002-09-22 | Team Prime Rib | NF-PM1 | B1=40000, B2=640000 | | 2000-01-12 | -anonymous- | C-LL | D37D571CEB83CE81 | | 1998-10-18 | -anonymous- | NF | no factor TF: 1-63 | | 1998-10-11 | -anonymous- | NF | no factor TF: 1-62 |
|
