| 2627857 | Composite, with 5 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 132 / 280 |
Estimated T-Level: 22.4 ⓘ TF below 2^69 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) | 2017-10-17 | Oliver Kruse | BA2E51018674A70F | 5 | 630290 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-02 | storm5510 | BA2E51018674A70F | 5 | 221764 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2627857/42045713/15893279137/772589959/9182215883689/12959707764049 : BA2E51018674A70F | | 2017-10-17 | Oliver Kruse | C-PRP | M2627857/42045713/15893279137/772589959/9182215883689/12959707764049 : BA2E51018674A70F | | 2013-12-20 | TJAOI | F | Factor: 12959707764049 | | 2008-09-30 | markr | F | Factor: 9182215883689 | | 2008-07-14 | George Woltman | F-ECM | Factor: 772589959 | | 2008-07-14 | George Woltman | F-ECM | Factor: 15893279137 |
|
