| 2566783 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 199 / 280 |
Estimated T-Level: 23.6 ⓘ TF below 2^73 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Joe Decker | 9ADC6A5398610819 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1999-04-23 | Jakob Trier | 9ADC6A5398610819 | 1607361 | Windows,Prime95,v17,(aka WT1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-15 | Oliver Kruse | 3C960FB89745644E | 1 | 1415334 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-01 | storm5510 | 3C960FB89745644E | 1 | 2427243 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-01-25 | USAFSS | NF-PM1 | B1=231000, B2=246888180 | | 2017-12-01 | storm5510 | C-PRP | M2566783/2085070449770210873 : 3C960FB89745644E | | 2017-10-15 | Oliver Kruse | C-PRP | M2566783/2085070449770210873 : 3C960FB89745644E | | 2009-01-26 | Sturle Sunde | F | Factor: 2085070449770210873 | | 2003-11-08 | Team Prime Rib | NF-PM1 | B1=15000, B2=198750 | | 2003-10-23 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-23 | -anonymous- | C-LL | 9ADC6A5398610819 | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-59 |
|
