| 8333197 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| 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 | 1999-11-24 | Jack Alvrus | 640CA96600D2E5D7 | 4448919 | Windows,Prime95,v18,NT service,(aka WU5) | | Factored | 2002-12-16 | Ilkka Lindblom | 640CA96600D2E5D7 | 2141263 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-16 | Oliver Kruse | D9935CEAD6625260 | 1 | 2996046 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-24 | Luigi Morelli | D9935CEAD6625260 | 1 | 2732278 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-24 | Luigi Morelli | C-PRP | M8333197/26779827455655098113 : D9935CEAD6625260 | | 2018-10-16 | Oliver Kruse | C-PRP | M8333197/26779827455655098113 : D9935CEAD6625260 | | 2014-01-07 | David Campeau | F | Factor: 26779827455655098113 / TF: 64-65 | | 2012-08-04 | firejuggler | NF-PM1 | B1=95000, B2=1662500, E=6 | | 2002-12-16 | -anonymous- | C-LL | 640CA96600D2E5D7 | | 2002-12-09 | -anonymous- | NF-PM1 | B1=40000, B2=640000 | | 2002-12-09 | -anonymous- | NF | no factor TF: 1-64 | | 2002-12-02 | -anonymous- | NF-PM1 | B1=45000, B2=675000, E=4 | | 2002-12-02 | megavink | NF-PM1 | B1=45000, B2=675000, E=4 | | 1999-11-24 | -anonymous- | C-LL | 640CA96600D2E5D7 | | 1999-06-26 | -anonymous- | NF | no factor TF: 1-63 | | 1998-09-20 | -anonymous- | NF | no factor TF: 1-62 |
|
