| 8328629 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 16 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2000-05-31 | Bartholomew Barker | 7F7544C559ED74F6 | 4077257 | Windows,Prime95,v19,NT service,(aka WV5) | | Factored | 2002-12-16 | Ron Lavallee | 7F7544C559ED74F6 | 1083121 | Windows,Prime95,v22,NT service,(aka WY5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-15 | Oliver Kruse | A0FF9DBA9AF39CDC | 1 | 6313074 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-21 | marssystems | A0FF9DBA9AF39CDC | 1 | 3556700 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-03 | Stef42 | NF-PM1 | B1=1117000, B2=1520760150 | | 2021-05-12 | firejuggler | NF-PP1 | Start=6/5, B1=500000, B2=26000000 | | 2021-04-30 | firejuggler | NF-PP1 | Start=2/7, B1=500000, B2=26500000 | | 2020-04-21 | marssystems | C-PRP | M8328629/748507800558626119439 : A0FF9DBA9AF39CDC | | 2018-10-15 | Oliver Kruse | C-PRP | M8328629/748507800558626119439 : A0FF9DBA9AF39CDC | | 2012-08-01 | firejuggler | F-PM1 | Factor: 748507800558626119439 | | 2002-12-16 | RonLavallee | C-LL | 7F7544C559ED74F6 | | 2002-11-09 | RonLavallee | NF-PM1 | B1=40000, B2=540000 | | 2000-05-31 | -anonymous- | C-LL | 7F7544C559ED74F6 | | 1999-12-23 | -anonymous- | NF | no factor TF: 1-64 | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-63 | | 1998-09-06 | -anonymous- | NF | no factor TF: 1-62 | | 1998-09-06 | Mark D | NF | no factor TF: 1-61 |
|
