| 43076291 | Composite: proven not-prime with Lucas-Lehmer test No factors below 275 TF target 272 |
| P-1 | | B1 = | 1500000 | | B2 = | 30000000 |
|
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2011-08-13 | George Woltman | C981558DE67EA225 | 39176944 | Windows 64-bit,Prime95,v26.5,build 3 | | Verified | 2018-02-21 | MadPoo 🙂 | C981558DE67EA225 | 36552956 | Windows 64-bit,Prime95,v29.4,(aka Wg4) |
|
| History | | Date | User | Type | Result |
|---|
| 2021-02-24 | -anonymous- | NF | no factor TF: 74-75 | | 2021-01-07 | Sid & Andy | NF-PM1 | B1=1500000, B2=30000000 | | 2020-01-24 | -anonymous- | NF | no factor TF: 73-74 | | 2019-02-18 | Random GPUs | NF | no factor TF: 72-73 | | 2018-02-21 | MadPoo 🙂 | C-LL | C981558DE67EA225 | | 2015-09-30 | AirSquirrels | NF | no factor TF: 71-72 | | 2015-05-08 | Mark Rose | NF | no factor TF: 70-71 | | 2015-02-12 | Grant McCracken | NF | no factor TF: 69-70 | | 2014-03-11 | Torben K. | NF | no factor TF: 68-69 | | 2011-08-13 | George Woltman | C-LL | C981558DE67EA225 | | 2008-08-26 | DDeM | NF-PM1 | B1=500000, B2=9000000 | | 2007-07-24 | WileECoyote | NF | no factor TF: 1-68 | | 2004-03-16 | -anonymous- | NF | no factor TF: 1-62 |
|
