| 5486389 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 83 / 280 |
Estimated T-Level: 21.5 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-12-21 | Michael Taylor | 85026BFDE3FE1E46 | 0 | Windows,Prime95,v16,(aka WS1) | | Bad | 2001-01-14 | kevin won | 88B844E380041B54 | 2606347 | Windows,Prime95,v20,(aka WW1) | | Factored | 2001-06-30 | ParVe-IT | 85026BFDE3FE1E46 | 1168332 | Linux 32-bit,Prime95,v20,(aka WW2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-31 | Massimo Cappelli (ik5pwa) | 3738E7D6B1C4F117 | 1 | 4236177 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-31 | Marcin | CERT | Proof certified good | | 2025-03-31 | Massimo Cappelli (ik5pwa) | C-PRP | M5486389/3110012555263333654045972841 : 3738E7D6B1C4F117 Proof Certified Good
Proof Power: 7
| | 2025-03-22 | fordobr | F-ECM | Factor: 3110012555263333654045972841 / ECM curve 38, B1=50000, B2=64857975, Edwards Sigma=8457768800530061 | | 2022-08-07 | Sid & Andy | NF-PM1 | B1=5000000, B2=6418231050 | | 2021-10-13 | SRBase | NF | no factor TF: 71-72 | | 2021-08-25 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2020-08-24 | TJAOI | NF | no factor TF: 68-69 | | 2020-05-30 | King | NF-PM1 | B1=1000000, B2=22500000 | | 2018-06-29 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-08 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-25 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-11-23 | lycorn | NF | no factor TF: 64-65 | | 2014-11-23 | lycorn | NF | no factor TF: 63-64 | | 2010-11-16 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-05-03 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2001-06-30 | -anonymous- | C-LL | 85026BFDE3FE1E46 | | 2001-05-27 | -anonymous- | NF-PM1 | B1=25000, B2=337500 | | 2001-01-14 | -anonymous- | C-LL | 88B844E380041B54 | | 2001-01-14 | -anonymous- | C-LL | 85026BFDE3FE1E46 | | 2001-01-08 | -anonymous- | NF-PM1 | B1=25000, B2=300000 | | 2000-01-12 | -anonymous- | C-LL | 85026BFDE3FE1E46 | | 1998-12-21 | -anonymous- | C-LL | 85026BFDE3FE1E46 | | 1998-04-11 | Phantomas | NF | no factor TF: 1-62 |
|
