| 5104259 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 6 / 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 | INTERSHOP Communications | 6EC5D03BE638E19E | 0 | Windows,Prime95,v16,NT service,(aka WS5) | | Factored | 2000-08-24 | Eric Whitney | 6EC5D03BE638E19E | 3748146 | Windows,Prime95,v20,NT service,(aka WW5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-09-20 | kkmrkkblmbrbk | C71F66BC827EE6E9 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2018-05-06 | storm5510 | C71F66BC827EE6E9 | 1 | 817966 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-21 | Sid & Andy | NF-PM1 | B1=3600000, B2=9023744730 | | 2025-01-27 | Sid & Andy | NF | no factor TF: 68-70 | | 2018-05-06 | storm5510 | C-PRP | M5104259/14904336289117884737 : C71F66BC827EE6E9 | | 2017-09-20 | kkmrkkblmbrbk | C-PRP | M5104259/14904336289117884737 : C71F66BC827EE6E9 | | 2014-12-14 | VictordeHollander | F | Factor: 14904336289117884737 / TF: 63-64 | | 2013-05-11 | Squeeky_Squirrel | NF-PM1 | B1=90000, B2=1642500, E=6 | | 2009-08-29 | USAFSS | NF-PM1 | B1=55000, B2=921250, E=6 | | 2009-07-27 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2008-12-29 | Sturle Sunde | NF | no factor TF: 61-62 | | 2000-08-24 | -anonymous- | C-LL | 6EC5D03BE638E19E | | 2000-08-01 | -anonymous- | NF-PM1 | B1=25000, B2=162500 | | 2000-06-28 | -anonymous- | NF-PM1 | B1=25000, B2=325000 | | 1998-07-05 | netconx | C-LL | 6EC5D03BE638E19E | | 1998-06-07 | netconx | NF | no factor TF: 1-61 |
|
