| 5325181 | Composite: proven not-prime with Lucas-Lehmer test No factors below 272 TF target 266 |
| P-1 | | B1 = | 4000000 | | B2 = | 10296725670 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 159 / 280 |
Estimated T-Level: 22.8 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 1999-01-29 | Marco Tagliatti | 666AB6BE4A5CFC82 | 0 | Windows,Prime95,v16,(aka WS1) | | Verified | 2000-08-01 | René Schnell | 666AB6BE4A5CFC82 | 2205015 | Windows,Prime95,v20,(aka WW1) |
|
| History | | Date | User | Type | Result |
|---|
| 2024-09-14 | Andrew B | NF | no factor TF: 71-72 | | 2022-08-04 | Sid & Andy | NF-PM1 | B1=4000000, B2=10296725670 | | 2022-02-10 | mikr | NF | no factor TF: 70-71 | | 2022-01-22 | Gordon Spence | NF | no factor TF: 69-70 | | 2020-08-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-06-19 | King | NF-PM1 | B1=1000000, B2=22500000 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-08-04 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-26 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-26 | VictordeHollander | NF | no factor TF: 63-64 | | 2009-11-15 | USAFSS | NF-PM1 | B1=60000, B2=990000, E=6 | | 2009-05-27 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-08-01 | rschnell | C-LL | 666AB6BE4A5CFC82 | | 2000-05-31 | rschnell | NF-PM1 | B1=20000, B2=20000 | | 1999-01-29 | -anonymous- | C-LL | 666AB6BE4A5CFC82 | | 1998-06-01 | -anonymous- | NF | no factor TF: 1-62 | | 1998-04-05 | -anonymous- | NF | no factor TF: 1-62 | | 1998-03-09 | Lars Fricke | NF | no factor TF: 1-61 |
|
