| 5015657 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 5 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-07-05 | Imad R. Faiad | 872175A567EFF77E | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-07-17 | Northwestern College | 872175A567EFF77E | 676715 | Windows,Prime95,v19,(aka WV1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-11-21 | storm5510 | CDF293C222F00404 | 1 | 3472403 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-01-11 | kkmrkkblmbrbk | CDF293C222F00404 | 1 | 3506824 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-09 | Sid & Andy | NF-PM1 | B1=5600000, B2=8313020562 | | 2025-01-01 | Sid & Andy | NF | no factor TF: 68-70 | | 2023-04-14 | Kevin_9611 | NF-PM1 | B1=330000, B2=178871550 | | 2018-01-11 | kkmrkkblmbrbk | C-PRP | M5015657/15877177817943712591303 : CDF293C222F00404 | | 2017-11-21 | storm5510 | C-PRP | M5015657/15877177817943712591303 : CDF293C222F00404 | | 2014-05-14 | Lukasz Wrobel | F-ECM | Factor: 15877177817943712591303 | | 2009-07-15 | USAFSS | NF-PM1 | B1=55000, B2=907500, E=6 | | 2006-01-15 | Joss | NF-PM1 | B1=2000 | | 2000-07-17 | davidcross | C-LL | 872175A567EFF77E | | 1999-09-14 | -anonymous- | C-LL | 872175A567EFF77E | | 1998-07-05 | -anonymous- | C-LL | 872175A567EFF77E |
|
