| 5466193 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 84 / 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 | 1998-09-13 | Thomas Honold | 02118B45D0A3BA08 | 0 | Linux 32-bit,Prime95,v16,(aka WS2) | | Factored | 2001-02-11 | Steve Berens | 02118B45D0A3BA08 | 484834 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-24 | Sly_007 | 4E35CC1CF4B15931 | 1 | 1687692 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-24 | 999cubes | CERT | Proof certified good | | 2025-03-24 | Sly_007 | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-03-19 | Andrey Dobrynin | F-ECM | Factor: 1052319691219187256359177 / ECM curve 41, B1=50000, B2=45039225, Edwards Sigma=139603676145826 | | 2021-10-21 | axn | NF-PM1 | B1=8000000, B2=400000000 | | 2021-09-18 | SRBase | NF | no factor TF: 71-72 | | 2021-08-24 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2020-09-07 | TJAOI | NF | no factor TF: 68-69 | | 2019-09-12 | USAFSS | NF-PM1 | B1=330000, B2=9817500 | | 2018-06-29 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-01 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-24 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-30 | monst | NF | no factor TF: 64-65 | | 2014-12-30 | snme2pm1 | NF | no factor TF: 63-64 | | 2010-04-22 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=1035000, E=6 | | 2009-05-07 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2001-02-11 | -anonymous- | C-LL | 02118B45D0A3BA08 | | 2001-01-08 | -anonymous- | NF-PM1 | B1=20000, B2=20000 | | 2000-07-03 | Stephen Wood | NF-PM1 | B1=20000, B2=20000 | | 1998-09-13 | -anonymous- | C-LL | 02118B45D0A3BA08 | | 1998-05-16 | slaur | NF | no factor TF: 1-62 | | 1998-03-31 | -anonymous- | NF | no factor TF: 1-61 |
|
