| 2445283 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 133 / 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 | | Fumitaka Hayashi | E205E41DAD1B2958 | 0 | Windows,Prime95,v11,(aka WC) | | Factored | 1999-09-07 | Keith O'Dell | E205E41DAD1B2958 | 95444 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-13 | Oliver Kruse | F90A2BD2D8D967E0 | 1 | 1437485 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-28 | storm5510 | F90A2BD2D8D967E0 | 1 | 1444869 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-03-10 | LordJulius | NF | no factor TF: 1-60 | | 2018-09-28 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-28 | storm5510 | C-PRP | M2445283/28796501816272692751 : F90A2BD2D8D967E0 | | 2017-10-13 | Oliver Kruse | C-PRP | M2445283/28796501816272692751 : F90A2BD2D8D967E0 | | 2010-03-15 | Conductor | F-ECM | Factor: 28796501816272692751 | | 2009-01-15 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-10-31 | Team Prime Rib | NF-PM1 | B1=15000, B2=217500 | | 2003-10-14 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-09-07 | -anonymous- | C-LL | E205E41DAD1B2958 | | 1999-03-15 | -anonymous- | NF | no factor TF: 1-59 |
|
