| 3434813 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 66 / 640 |
Estimated T-Level: 25.5 ⓘ TF below 2^80 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Ken Kriesel | 60041993D6273732 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-12-08 | Daniel Kebert | 60041993D6273732 | 335307 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-18 | fordobr | C7D1EF65124AF52E | 1 | 1927954 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-18 | kkmrkkblmbrbk | CERT | Proof certified good | | 2025-01-18 | fordobr | C-PRP | M3434813/1307538295015514798468502119 : C7D1EF65124AF52E Proof Certified Good
Proof Power: 7
| | 2025-01-18 | fordobr | F-ECM | Factor: 1307538295015514798468502119 / ECM curve 37, B1=126359, B2=275660385, Edwards Sigma=7709224537622415 | | 2024-12-08 | Joss | NF-PM1 | B1=15651870, B2=17110223130 | | 2024-01-14 | Joss | NF-PM1 | B1=2430180, B2=6908401500 | | 2023-11-17 | Joss | NF-PM1 | B1=2430180, B2=3303720420 | | 2023-11-17 | Joss | NF-PM1 | B1=2430180, B2=1551469920 | | 2023-08-26 | Joss | NF-PM1 | B1=1000000, B2=1551469920 | | 2022-08-01 | TJAOI | NF | no factor TF: 69-70 | | 2021-05-06 | axn | NF-PM1 | B1=14000000, B2=700000000 | | 2021-01-01 | axn | NF | no factor TF: 68-69 | | 2018-09-17 | TJAOI | NF | no factor TF: 67-68 | | 2017-02-05 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2015-04-13 | Gordon Spence | NF | no factor TF: 65-66 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-09-16 | HBendtz | NF-PM1 | B1=500000, B2=10000000, E=12 | | 2014-07-18 | Joss | NF-PM1 | B1=78686 | | 2012-08-18 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-11-01 | USAFSS | NF-PM1 | B1=60000, B2=945000, E=6 | | 2011-08-06 | markr | NF | no factor TF: 61-62 | | 2009-07-06 | Carsten Kossendey | NF-PM1 | B1=15000, B2=210000 | | 2009-03-24 | S485122 | NF | no factor TF: 60-61 | | 1999-12-08 | -anonymous- | C-LL | 60041993D6273732 |
|
