| 4842707 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 39 / 280 |
Estimated T-Level: 20.7 ⓘ TF below 2^64 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-07-11 | Jari Hällström | A96D315A751A3281 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 2000-04-12 | Erik Alvis | A96D315A751A3281 | 3812638 | Windows,Prime95,v19,(aka WV1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-05 | fordobr | 91AD8F2AA327279A | 1 | 3235211 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-05 | Land Shark | CERT | Proof certified good | | 2025-01-05 | fordobr | C-PRP | M4842707/22425654313223367902845241 : 91AD8F2AA327279A Proof Certified Good
Proof Power: 7
| | 2025-01-05 | fordobr | F-ECM | Factor: 22425654313223367902845241 / ECM curve 8, B1=50000, B2=45039225, Edwards Sigma=5454060258363244 | | 2023-03-16 | Sid & Andy | NF-PM1 | B1=4100000, B2=10597329600 | | 2021-07-19 | ATH | NF-PP1 | Start=2/7, B1=1000000, B2=54000000 | | 2020-12-06 | -anonymous- | NF | no factor TF: 71-72 | | 2020-12-03 | -anonymous- | NF | no factor TF: 70-71 | | 2020-12-03 | -anonymous- | NF | no factor TF: 69-70 | | 2020-12-03 | -anonymous- | NF | no factor TF: 68-69 | | 2018-05-08 | ramgeis | NF | no factor TF: 67-68 | | 2017-11-09 | Yxinity | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-07-20 | snme2pm1 | NF | no factor TF: 65-66 | | 2015-01-07 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-07 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-12-15 | David Campeau | NF-PM1 | B1=410000, B2=11070000, E=12 | | 2011-09-28 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-05-23 | markr | NF | no factor TF: 61-62 | | 2009-08-25 | Carsten Kossendey | NF-PM1 | B1=30000, B2=435000 | | 2000-04-12 | -anonymous- | C-LL | A96D315A751A3281 | | 1998-07-11 | jkh | C-LL | A96D315A751A3281 | | 1998-05-16 | jkh | NF | no factor TF: 1-61 |
|
