| 8326001 | 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 |
|---|
| Bad | 1999-11-10 | Mark Brown | 617C06EF23ADEEFE | 3948529 | Linux 32-bit,Prime95,v18,(aka WU2) | | Factored | 2002-06-29 | George Woltman | 46CE25990D6C4BF9 | 3227526 | Windows,Prime95,v22,(aka WY1) | | Factored | 2002-12-09 | Gerhard H Wrodnigg | 46CE25990D6C4BF9 | 2353438 | Windows,Prime95,v22,(aka WY1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-14 | Oliver Kruse | 37B387FC2473023F | 1 | 8272644 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-19 | ATH | 37B387FC2473023F | 1 | 1169649 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-19 | ATH | C-PRP | M8326001/39874515276375411497 : 37B387FC2473023F | | 2018-10-14 | Oliver Kruse | C-PRP | M8326001/39874515276375411497 : 37B387FC2473023F | | 2015-05-28 | VictordeHollander | F | Factor: 39874515276375411497 / TF: 65-66 | | 2014-01-06 | David Campeau | NF | no factor TF: 64-65 | | 2002-12-09 | Michael Hanscho | C-LL | 46CE25990D6C4BF9 | | 2002-06-29 | George Woltman | C-LL | 46CE25990D6C4BF9 | | 2002-06-23 | George Woltman | NF-PM1 | B1=100000, B2=1925000 | | 2002-06-23 | George Woltman | NF | no factor TF: 1-64 | | 1999-11-10 | -anonymous- | C-LL | 617C06EF23ADEEFE | | 1998-09-20 | -anonymous- | NF | no factor TF: 1-63 |
|
