| 4358527 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 126 / 280 |
Estimated T-Level: 22.3 ⓘ TF below 2^69 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Bad | 1998-05-01 | Jaron Abbott | FCF23E2967F61176 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-12-08 | Wieslaw Szalk | 78BB8DDAE763E9EA | 4265856 | Windows,Prime95,v18,(aka WU1) | | Factored | 2001-02-04 | Lyushniak Sergey | 78BB8DDAE763E9EA | 1616137 | Windows,Prime95,v20,NT service,(aka WW5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-27 | fordobr | EF5CC078427F665E | 1 | 1001647 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-27 | jingfired | CERT | Proof certified good | | 2025-01-27 | fordobr | C-PRP | M4358527/76182573119859221921783 : EF5CC078427F665E Proof Certified Good
Proof Power: 7
| | 2025-01-27 | fordobr | F-ECM | Factor: 76182573119859221921783 / ECM curve 24, B1=68333, B2=88280115, Edwards Sigma=4076144735159225 | | 2022-12-18 | DRobinsonPE | NF-PM1 | B1=6200000, B2=32177450760 | | 2022-10-05 | Kevin_9611 | NF-PM1 | B1=240000, B2=95907630 | | 2021-01-29 | -anonymous- | NF | no factor TF: 71-72 | | 2021-01-29 | -anonymous- | NF | no factor TF: 70-71 | | 2021-01-25 | -anonymous- | NF | no factor TF: 69-70 | | 2021-01-25 | -anonymous- | NF | no factor TF: 68-69 | | 2018-10-27 | chuenkit | NF | no factor TF: 67-68 | | 2018-05-02 | chuenkit | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-01-27 | Squeeky_Squirrel | NF-PM1 | B1=150000, B2=3675000, E=6 | | 2015-06-18 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-07-01 | lycorn | NF | no factor TF: 64-65 | | 2014-07-01 | Jayder | NF | no factor TF: 63-64 | | 2012-01-15 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-11-18 | markr | NF | no factor TF: 61-62 | | 2010-11-04 | Oscar Östlin | NF-PM1 | B1=70000, B2=1400000, E=6 | | 2002-04-07 | David Campeau | NF | no factor TF: 1-61 | | 2001-02-04 | Lueha | C-LL | 78BB8DDAE763E9EA | | 2000-12-31 | Lueha | NF-PM1 | B1=20000, B2=205000 | | 1999-12-08 | -anonymous- | C-LL | 78BB8DDAE763E9EA | | 1998-05-01 | -anonymous- | C-LL | FCF23E2967F61176 | | 1998-03-31 | -anonymous- | NF | no factor TF: 1-60 |
|
