| 4335073 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 76 / 280 |
Estimated T-Level: 21.4 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Bad | 1998-04-11 | Duane J. May | E4F55D8599E42943 | 0 | Windows,Prime95,v15,(aka WR1) | | Bad | 1999-11-17 | Miall Cedilote | 055AE98E597AE1BA | 3850617 | Windows,Prime95,v19,(aka WV1) | | Factored | 2001-06-17 | Binary Digits | 3A00919E829DD888 | 3679770 | Windows,Prime95,v20,(aka WW1) | | Factored | 2001-10-06 | Robin Tremblay | 3A00919E829DD888 | 2231613 | Linux 32-bit,Prime95,v20,(aka WW2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-14 | fordobr | B1655991F046A9BA | 1 | 1451156 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-14 | George Woltman | CERT | Proof certified good | | 2025-02-14 | fordobr | C-PRP | M4335073/745916079463341481120548223 : B1655991F046A9BA Proof Certified Good
Proof Power: 7
| | 2025-02-14 | fordobr | F-ECM | Factor: 745916079463341481120548223 / ECM curve 3, B1=72980, B2=117709515, Edwards Sigma=7329627590015715 | | 2022-11-29 | DRobinsonPE | NF-PM1 | B1=6200000, B2=28433170920 | | 2021-02-09 | -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 | | 2018-10-25 | chuenkit | NF | no factor TF: 67-68 | | 2018-04-30 | chuenkit | NF | no factor TF: 66-67 | | 2015-06-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2013-11-02 | David Campeau | NF | no factor TF: 64-65 | | 2011-06-04 | Richard B. Woods | NF | no factor TF: 63-64 | | 2010-04-08 | Richard B. Woods | NF | no factor TF: 62-63 | | 2010-03-06 | Richard B. Woods | NF | no factor TF: 61-62 | | 2001-10-06 | Gordon Spence | NF-PM1 | B1=25000, B2=337500 | | 2001-10-06 | -anonymous- | C-LL | 3A00919E829DD888 | | 2001-09-22 | -anonymous- | NF-PM1 | B1=250000, B2=25000000 | | 2001-08-24 | -anonymous- | NF-PM1 | B1=50000, B2=5000000 | | 2001-08-24 | -anonymous- | NF | no factor TF: 1-61 | | 2001-07-17 | -anonymous- | NF-PM1 | B1=25000, B2=331250 | | 2001-06-17 | binarydigits | C-LL | 3A00919E829DD888 | | 2001-03-11 | -anonymous- | NF-PM1 | B1=25000, B2=312500 | | 1999-11-17 | -anonymous- | C-LL | 055AE98E597AE1BA | | 1998-04-11 | -anonymous- | C-LL | E4F55D8599E42943 | | 1998-02-19 | -anonymous- | NF | no factor TF: 1-60 |
|
