| 26157863 | Composite: proven not-prime with Lucas-Lehmer test No factors below 273 TF target 270 |
| P-1 | | B1 = | 1199000 | | B2 = | 2518188750 |
|
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2005-03-20 | IES R.Dieste-I.Larrosa | 19806BA241A67542 | 8820217 | Windows,Prime95,v23,(aka WZ1) | | Bad | 2012-04-10 | -anonymous- | 504900426E8FDA8C | 0 | CUDALucas v0._ | | Verified | 2012-04-11 | Dubslow | 19806BA241A67542 | 0 | CUDALucas v2.00 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-23 | Jason Lynch | NF-PM1 | B1=1199000, B2=2518188750 | | 2022-12-11 | Sid & Andy | NF | no factor TF: 72-73 | | 2021-01-09 | -anonymous- | NF | no factor TF: 71-72 | | 2021-01-09 | -anonymous- | NF | no factor TF: 70-71 | | 2017-04-02 | ramgeis | NF | no factor TF: 69-70 | | 2012-04-11 | Dubslow | C-LL | 19806BA241A67542 | | 2012-04-10 | -anonymous- | C-LL | 504900426E8FDA8C | | 2011-12-06 | Luigi Morelli | NF | no factor TF: 68-69 | | 2011-12-05 | lalera | NF | no factor TF: 67-68 | | 2005-03-20 | Ignacio_Larrosa | C-LL | 19806BA241A67542 | | 2005-01-20 | Ignacio_Larrosa | NF-PM1 | B1=250000, B2=1187500 | | 2004-08-06 | iPrime | NF | no factor TF: 1-67 |
|
