| 8320603 | 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 | 2000-02-09 | Keith Pomakis | 274C03D1FF7AB379 | 7966545 | Linux 32-bit,Prime95,v19,(aka WV2) | | Factored | 2003-04-03 | Ars Technica Team Prime Rib | 274C03D1FF7AB379 | 2545938 | Windows,Prime95,v21,NT service,(aka WX5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-08 | ATH | 37FFDDE81EE9F7D4 | 1 | 4508806 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-19 | Wentao Huang | 37FFDDE81EE9F7D4 | 1 | 3388261 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-14 | beep | NF-PM1 | B1=1750000, B2=6798611820 | | 2020-04-19 | Wentao Huang | C-PRP | M8320603/64812352824254641559 : 37FFDDE81EE9F7D4 | | 2018-10-08 | ATH | C-PRP | M8320603/64812352824254641559 : 37FFDDE81EE9F7D4 | | 2015-05-28 | VictordeHollander | F | Factor: 64812352824254641559 / TF: 65-66 | | 2014-01-06 | David Campeau | NF | no factor TF: 64-65 | | 2011-01-21 | Carsten Kossendey | NF-PM1 | B1=510000, B2=15682500, E=12 | | 2003-04-03 | Team Prime Rib | C-LL | 274C03D1FF7AB379 | | 2002-08-31 | -anonymous- | NF-PM1 | B1=35000, B2=35000 | | 2000-02-09 | pomakis | C-LL | 274C03D1FF7AB379 | | 1999-12-30 | -anonymous- | NF | no factor TF: 1-64 | | 1999-03-01 | -anonymous- | NF | no factor TF: 1-63 | | 1998-12-06 | -anonymous- | NF | no factor TF: 1-62 | | 1998-12-06 | -anonymous- | NF | no factor TF: 1-61 |
|
