| 4340969 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 160 / 280 |
Estimated T-Level: 22.9 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-08-02 | Jan Peters | 2DF816AE6E87F916 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2001-04-08 | Gary Lupienski | 2DF816AE6E87F916 | 1769885 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-25 | fordobr | 0C31F5E8D8E11E54 | 1 | 3954969 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-25 | ANONYMOUS | CERT | Proof certified good | | 2025-02-25 | fordobr | C-PRP | M4340969/203494143550373338119389047 : 0C31F5E8D8E11E54 Proof Certified Good
Proof Power: 7
| | 2025-02-25 | fordobr | F-ECM | Factor: 203494143550373338119389047 / ECM curve 30, B1=75000, B2=117709515, Edwards Sigma=8539241301224043 | | 2022-12-06 | DRobinsonPE | NF-PM1 | B1=6200000, B2=27797994840 | | 2021-02-10 | -anonymous- | NF | no factor TF: 72-73 | | 2021-01-28 | -anonymous- | NF | no factor TF: 71-72 | | 2021-01-28 | -anonymous- | NF | no factor TF: 70-71 | | 2021-01-25 | -anonymous- | NF | no factor TF: 69-70 | | 2021-01-25 | -anonymous- | NF | no factor TF: 68-69 | | 2018-10-26 | chuenkit | NF | no factor TF: 67-68 | | 2018-05-02 | chuenkit | NF | no factor TF: 66-67 | | 2016-12-28 | Squeeky_Squirrel | NF-PM1 | B1=265000, B2=7817500, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-06-15 | lycorn | NF | no factor TF: 64-65 | | 2014-06-15 | Jayder | NF | no factor TF: 63-64 | | 2012-01-14 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-12-01 | markr | NF | no factor TF: 61-62 | | 2010-09-01 | markr | NF-PM1 | B1=95000, B2=2090000, E=6 | | 2001-04-08 | gski | C-LL | 2DF816AE6E87F916 | | 2001-03-11 | gski | NF-PM1 | B1=20000, B2=180000 | | 1999-12-08 | -anonymous- | C-LL | D6301994BDF910__ | | 1998-08-02 | -anonymous- | C-LL | 2DF816AE6E87F916 | | 1998-07-05 | -anonymous- | NF | no factor TF: 1-61 |
|
