| 2531083 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 174 / 280 |
Estimated T-Level: 23.1 ⓘ TF below 2^72 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 | D414E89C3A7565C2 | 2 | 1067133 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-10-15 | Yaroslav Berezhko | FA54F8425897BF8A | 2 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-12-01 | storm5510 | D414E89C3A7565C2 | 2 | 836391 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-05 | kkmrkkblmbrbk | FA54F8425897BF8A | 2 | 1908845 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-05 | kkmrkkblmbrbk | C-PRP | M2531083/242983969/14759698467401263 : FA54F8425897BF8A | | 2017-12-01 | storm5510 | C-PRP | M2531083/242983969/14759698467401263 : D414E89C3A7565C2 | | 2017-10-15 | Yaroslav Berezhko | C-PRP | M2531083/242983969/14759698467401263 : FA54F8425897BF8A | | 2017-10-14 | Oliver Kruse | C-PRP | M2531083/242983969/14759698467401263 : D414E89C3A7565C2 | | 2014-10-08 | TJAOI | F | Factor: 14759698467401263 |
|
