| 7688957 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 267 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 6 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-08-07 | Bob Metakes | DF8E8B4F27845E83 | 42042 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-06-09 | Bartlomiej Froncisz | DF8E8B4F27845E83 | 1730172 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2020-06-09 | LaurV | 3B44CB47E55EF7A6 | 1 | 5472216 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-06-11 | Oliver Kruse | 3B44CB47E55EF7A6 | 1 | 4752785 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2020-06-11 | Oliver Kruse | C-PRP | M7688957/16699253068641398350354351 : 3B44CB47E55EF7A6 | | 2020-06-09 | LaurV | C-PRP | M7688957/16699253068641398350354351 : 3B44CB47E55EF7A6 | | 2020-06-09 | GdS | F-PM1 | Factor: 16699253068641398350354351 / B1=721165, B2=15144458 | | 2020-03-06 | TJAOI | NF | no factor TF: 68-69 | | 2018-07-31 | ramgeis | NF | no factor TF: 67-68 | | 2016-09-19 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-06-12 | VictordeHollander | NF | no factor TF: 65-66 | | 2013-12-09 | David Campeau | NF | no factor TF: 64-65 | | 2013-10-11 | Nesowa | NF | no factor TF: 63-64 | | 2012-08-07 | Nesowa | NF-PM1 | B1=95000, B2=1757500, E=6 | | 2002-06-09 | -anonymous- | C-LL | DF8E8B4F27845E83 | | 2002-03-31 | -anonymous- | NF-PM1 | B1=40000, B2=410000 | | 1999-08-07 | -anonymous- | C-LL | DF8E8B4F27845E83 | | 1999-07-04 | Nexus Primes | NF | no factor TF: 1-63 | | 1998-10-18 | -anonymous- | NF | no factor TF: 1-62 |
|
