| 7122859 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 267 |
| 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 | 1999-05-30 | David Christensen | 2A01B4708FCA157D | 3334798 | Windows,Prime95,v18,NT service,(aka WU5) | | Factored | 2002-04-14 | benjamin hillier | 2A01B4708FCA157D | 2467675 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2020-04-20 | Chang Chia-Tche | D4D57C6EFF1FA414 | 1 | 6718082 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-23 | GAN | D4D57C6EFF1FA414 | 1 | 744895 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-10-04 | Sid & Andy | NF-PM1 | B1=2600000, B2=4510734690 | | 2020-04-23 | GAN | C-PRP | M7122859/339710109643434640151 : D4D57C6EFF1FA414 | | 2020-04-20 | Chang Chia-Tche | C-PRP | M7122859/339710109643434640151 : D4D57C6EFF1FA414 | | 2020-04-17 | TJAOI | F | Factor: 339710109643434640151 / TF: 68-69 | | 2018-07-23 | ramgeis | NF | no factor TF: 67-68 | | 2016-10-22 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-06-21 | VictordeHollander | NF | no factor TF: 65-66 | | 2014-02-08 | lycorn | NF | no factor TF: 64-65 | | 2014-02-02 | Nesowa | NF | no factor TF: 63-64 | | 2011-12-21 | James Heinrich | NF-PM1 | B1=135000, B2=2902500, E=6 | | 2002-04-14 | -anonymous- | C-LL | 2A01B4708FCA157D | | 2001-11-10 | mkroska | NF | no factor TF: 1-63 | | 2001-11-10 | mkroska | NF-PM1 | B1=35000, B2=358750 | | 1999-05-30 | -anonymous- | C-LL | 2A01B4708FCA157D | | 1998-06-01 | -anonymous- | NF | no factor TF: 1-62 |
|
