| 5506769 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 73 / 280 |
Estimated T-Level: 21.3 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-11-07 | Joseph Charrier | 3992F829C6163645 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2001-04-15 | Anne C. Hanna | 3992F829C6163645 | 4877462 | Linux 32-bit,Prime95,v20,(aka WW2) | | Factored | 2001-06-17 | Keith Costello | 3992F829C6163645 | 4990579 | Windows,Prime95,v20,NT service,(aka WW5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-04-02 | ANONYMOUS | 76421F8699634431 | 1 | 4672285 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-04-02 | ViktorD | CERT | Proof certified good | | 2025-04-02 | ANONYMOUS | C-PRP | M5506769/2751443589642751319375377 : 76421F8699634431 Proof Certified Good
Proof Power: 7
| | 2025-03-26 | fordobr | F-ECM | Factor: 2751443589642751319375377 / ECM curve 32, B1=50000, B2=88280115, Edwards Sigma=3724547967100255 | | 2022-07-31 | Sid & Andy | NF-PM1 | B1=7000000, B2=5819808390 | | 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 | | 2020-12-23 | Dylan Delgado | NF-PM1 | B1=1000000, B2=20000000 | | 2020-08-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-09-08 | GdS | NF-PM1 | B1=200000, B2=6000000 | | 2018-07-05 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-14 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-30 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-03 | monst | NF | no factor TF: 64-65 | | 2014-12-02 | Nesowa | NF | no factor TF: 63-64 | | 2010-04-29 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=1035000, E=6 | | 2009-05-01 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2001-06-17 | KC | C-LL | 3992F829C6163645 | | 2001-04-15 | -anonymous- | C-LL | 3992F829C6163645 | | 2001-03-17 | -anonymous- | NF-PM1 | B1=20000, B2=20000 | | 2001-01-08 | KC | NF-PM1 | B1=20000, B2=20000 | | 1999-06-26 | -anonymous- | NF | no factor TF: 1-62 | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-62 | | 1998-12-06 | -anonymous- | NF | no factor TF: 1-62 | | 1998-11-21 | -anonymous- | NF | no factor TF: 1-62 | | 1998-11-07 | -anonymous- | C-LL | 3992F829C6163645 | | 1998-10-11 | -anonymous- | NF | no factor TF: 1-62 | | 1998-04-11 | -anonymous- | NF | no factor TF: 1-61 |
|
