| 8274283 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 47 / 280 |
Estimated T-Level: 20.8 ⓘ TF below 2^64 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 |
|---|
| Factored | PRP without proof (not generated) | 2018-09-29 | rucio | 8ECB7982E857F3A1 | 1 | 6441575 | 5 | 3 | | Factored | PRP without proof (not generated) | 2020-04-03 | marssystems | 8ECB7982E857F3A1 | 1 | 3274970 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-06-10 | riccardo uberti | 8ECB7982E857F3A1 | 2 | 2823305 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-03-05 | riccardo uberti | NF-PM1 | B1=3000000, B2=60000000 | | 2021-06-02 | riccardo uberti | NF-PP1 | Start=6/5, B1=1500000, B2=30000000 | | 2021-05-31 | riccardo uberti | NF-PP1 | Start=2/7, B1=1500000, B2=30000000 | | 2020-06-10 | riccardo uberti | C-PRP | M8274283/82742831/111129449901720889633 : 8ECB7982E857F3A1 | | 2020-06-09 | TJAOI | F | Factor: 111129449901720889633 | | 2020-04-03 | marssystems | C-PRP | M8274283/82742831 : 8ECB7982E857F3A1 | | 2018-09-29 | rucio | C-PRP | M8274283/82742831 : 8ECB7982E857F3A1 |
|
