| 4056109 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 270 / 280 |
Estimated T-Level: 24.8 ⓘ TF below 2^77 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-04-27 | Ed Kirk | 47FBD29277BA17CB | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-09-30 | S05394 | 47FBD29277BA17CB | 814013 | Windows,Prime95,v17,(aka WT1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2026-10-03 | David | 3D5E7E761EF2F6F8 | 1 | 985579 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-10-03 | Big Rich | CERT | Proof certified good | | 2026-10-03 | David | C-PRP | Proof Certified Good
Proof Power: 7
| | 2026-10-03 | David | F-ECM | Factor: 3099198731048446567959727 / ECM curve 16, B1=181625, B2=51026430, Edwards Sigma=5504640995700040 | | 2025-03-09 | linament | NF | no factor TF: 71-72 | | 2022-09-02 | DRobinsonPE | NF-PM1 | B1=6200000, B2=26931564660 | | 2022-04-07 | mikr | NF | no factor TF: 70-71 | | 2021-06-26 | ATH | NF-PP1 | Start=2/7, B1=2500000, B2=172500000 | | 2020-11-16 | mikr | NF | no factor TF: 69-70 | | 2020-11-16 | mikr | NF | no factor TF: 68-69 | | 2018-12-09 | Ismo Laitela | NF-PM1 | B1=2237739, B2=62656681, E=12 | | 2018-11-03 | Yxinity | NF | no factor TF: 67-68 | | 2016-09-20 | kkmrkkblmbrbk | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-05-21 | snme2pm1 | NF | no factor TF: 65-66 | | 2013-10-07 | David Campeau | NF | no factor TF: 64-65 | | 2013-08-18 | Jayder | NF | no factor TF: 63-64 | | 2013-07-01 | Squeeky_Squirrel | NF-PM1 | B1=120000, B2=2310000, E=6 | | 2011-07-23 | USAFSS | NF-PM1 | B1=40000, B2=580000 | | 2011-07-01 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-10-14 | Grant McCracken | NF | no factor TF: 61-62 | | 2009-07-17 | Carsten Kossendey | NF-PM1 | B1=20000, B2=300000 | | 2001-08-12 | David Campeau | NF | no factor TF: 1-61 | | 1999-09-30 | -anonymous- | C-LL | 47FBD29277BA17CB | | 1998-04-27 | -anonymous- | C-LL | 47FBD29277BA17CB | | 1998-03-17 | -anonymous- | NF | no factor TF: 1-60 |
|
