| 4332673 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 135 / 280 |
Estimated T-Level: 22.4 ⓘ TF below 2^69 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-02-24 | Martin Koster | 47E89C4C6A9A3611 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-11-17 | Oene de Vegt | 47E89C4C6A9A3611 | 4002872 | OS/2,Prime95,v18,(aka WU7) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-15 | fordobr | 26EFAC8C0347605B | 1 | 350447 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-15 | Chris Wonson | CERT | Proof certified good | | 2025-03-15 | fordobr | C-PRP | M4332673/39307636092968344513094383 : 26EFAC8C0347605B Proof Certified Good
Proof Power: 7
| | 2025-03-15 | fordobr | F-ECM | Factor: 39307636092968344513094383 / ECM curve 17, B1=80899, B2=145935405, Edwards Sigma=621223258298881 | | 2022-11-20 | DRobinsonPE | NF-PM1 | B1=6200000, B2=28433170920 | | 2022-10-04 | Kevin_9611 | NF-PM1 | B1=240000, B2=93242310 | | 2021-02-10 | -anonymous- | NF | no factor TF: 72-73 | | 2021-01-30 | -anonymous- | NF | no factor TF: 71-72 | | 2021-01-30 | -anonymous- | NF | no factor TF: 70-71 | | 2021-01-26 | -anonymous- | NF | no factor TF: 69-70 | | 2021-01-26 | -anonymous- | NF | no factor TF: 68-69 | | 2018-10-25 | chuenkit | NF | no factor TF: 67-68 | | 2018-04-30 | chuenkit | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-01-25 | Squeeky_Squirrel | NF-PM1 | B1=150000, B2=3637500, E=6 | | 2015-06-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-06-11 | lycorn | NF | no factor TF: 64-65 | | 2014-06-07 | Jayder | NF | no factor TF: 63-64 | | 2012-01-14 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-12-17 | Squeeky_Squirrel | NF-PM1 | B1=80000, B2=1440000, E=6 | | 2010-12-05 | markr | NF | no factor TF: 61-62 | | 2009-08-08 | Carsten Kossendey | NF-PM1 | B1=25000, B2=343750 | | 2002-03-31 | David Campeau | NF | no factor TF: 1-61 | | 1999-11-17 | -anonymous- | C-LL | 47E89C4C6A9A3611 | | 1998-02-24 | -anonymous- | C-LL | 47E89C4C6A9A3611 | | 1998-02-01 | -anonymous- | NF | no factor TF: 1-60 |
|
