| 6742481 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 267 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 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 | 1999-06-15 | Judy Galbraith | FFF94F014329E969 | 2688348 | Windows,Prime95,v18,NT service,(aka WU5) | | Factored | 2001-08-12 | Pat Lett | FFF94F014329E969 | 2513583 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-01-07 | Oliver Kruse | 36F2A75AA1D01D96 | 1 | 6463166 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-12-08 | storm5510 | 36F2A75AA1D01D96 | 1 | 6389189 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-07 | Stef42 | NF-PM1 | B1=984000, B2=1751744610 | | 2018-12-08 | storm5510 | C-PRP | M6742481/65665967780187928561 : 36F2A75AA1D01D96 | | 2018-01-07 | Oliver Kruse | C-PRP | M6742481/65665967780187928561 : 36F2A75AA1D01D96 | | 2015-11-13 | snme2pm1 | F | Factor: 65665967780187928561 / TF: 65-66* | | 2014-07-02 | lycorn | NF | no factor TF: 64-65 | | 2014-06-29 | Nesowa | NF | no factor TF: 63-64 | | 2012-07-16 | Nesowa | NF-PM1 | B1=80000, B2=1440000, E=6 | | 2009-06-21 | Carsten Kossendey | NF-PM1 | B1=35000, B2=533750 | | 2004-10-03 | David Campeau | NF | no factor TF: 1-63 | | 2001-08-12 | lettp | C-LL | FFF94F014329E969 | | 1999-06-15 | -anonymous- | C-LL | FFF94F014329E969 | | 1998-07-11 | Brian Campbell | NF | no factor TF: 1-62 |
|
