| 2578019 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 194 / 280 |
Estimated T-Level: 23.5 ⓘ TF below 2^73 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Seth Chazanoff | 5674432545307F64 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-11-24 | Bela Kerenyi | 5674432545307F64 | 459782 | Windows,Prime95,v18,(aka WU1) |
|
| 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 | F3D408FC7C4432C7 | 1 | 1127685 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-01 | storm5510 | F3D408FC7C4432C7 | 1 | 2127752 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-01-25 | USAFSS | NF-PM1 | B1=232000, B2=246845610 | | 2017-12-01 | storm5510 | C-PRP | M2578019/9534723847335947144578703 : F3D408FC7C4432C7 | | 2017-10-15 | Oliver Kruse | C-PRP | M2578019/9534723847335947144578703 : F3D408FC7C4432C7 | | 2003-11-08 | Team Prime Rib | F-PM1 | Factor: 9534723847335947144578703 | | 2003-10-31 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-11-24 | -anonymous- | C-LL | 5674432545307F64 | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-59 |
|
