| 23553499 | Composite: proven not-prime with Lucas-Lehmer test No factors below 273 TF target 270 |
| P-1 | | B1 = | 1200000 | | B2 = | 1372960050 |
|
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2004-05-11 | John Hunt | 988772B0CA14E807 | 14330 | Linux 32-bit,Prime95,v23,(aka WZ2) | | Verified | 2011-09-25 | Dubslow | 988772B0CA14E807 | 0 | CUDALucas v1.2 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-03 | Tha | NF-PM1 | B1=1200000, B2=1372960050 | | 2023-01-16 | RichD0 | NF | no factor TF: 72-73 | | 2021-06-27 | -anonymous- | NF | no factor TF: 71-72 | | 2021-06-26 | -anonymous- | NF | no factor TF: 70-71 | | 2018-08-30 | ramgeis | NF | no factor TF: 69-70 | | 2018-01-05 | VictordeHollander | NF | no factor TF: 68-69 | | 2016-06-29 | VictordeHollander | NF | no factor TF: 67-68 | | 2011-09-25 | Dubslow | C-LL | 988772B0CA14E807 | | 2005-11-27 | -anonymous- | C-LL | 988772B0CA14E807 | | 2005-11-27 | -anonymous- | NF-PM1 | B1=235000, B2=1703750 | | 2004-05-11 | -anonymous- | C-LL | 988772B0CA14E807 | | 2004-03-16 | -anonymous- | NF-PM1 | B1=235000, B2=1703750 | | 2003-12-13 | WorknPlay | NF | no factor TF: 1-67 | | 2003-07-21 | -anonymous- | NF | no factor TF: 1-60 | | 2001-09-10 | Net_Force | NF | no factor TF: 1-56 |
|
