| 2480563 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 211 / 280 |
Estimated T-Level: 23.8 ⓘ TF below 2^74 is very unlikely to find new factors due to ECM effort. |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-14 | Oliver Kruse | DC5E03AB254EBCF8 | 2 | 298167 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-29 | storm5510 | DC5E03AB254EBCF8 | 2 | 405567 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-03-18 | Denial140 | NF-PM1 | B1=1000000, B2=6543255810 | | 2022-08-17 | USAFSS | NF-PM1 | B1=224000, B2=203668920 | | 2017-11-29 | storm5510 | C-PRP | M2480563/461384719/161539223687 : DC5E03AB254EBCF8 | | 2017-10-14 | Oliver Kruse | C-PRP | M2480563/461384719/161539223687 : DC5E03AB254EBCF8 | | 2008-07-14 | George Woltman | F-ECM | Factor: 161539223687 |
|
