| 17579963 | Composite: proven not-prime with Lucas-Lehmer test No factors below 274 TF target 269 |
| P-1 | | B1 = | 1000000 | | B2 = | 1374969750 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 1 / 280 |
Estimated T-Level: 20.0 ⓘ TF below 2^61 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2003-05-11 | Joe Karr | 5B0B9132F94EC412 | 13280708 | Windows,Prime95,v22,(aka WY1) | | Verified | 2006-12-18 | Jakobus | 5B0B9132F94EC412 | 12859350 | Windows,Prime95,v24 final,(aka Wc1) |
|
| History | | Date | User | Type | Result |
|---|
| 2024-08-18 | Jarod McClintock | NF-PM1 | B1=1000000, B2=1374969750 | | 2022-02-04 | Architects Cubed | NF-PM1 | B1=635000, B2=31746000 | | 2022-01-11 | TheJudger | NF | no factor TF: 73-74 | | 2021-11-16 | RichD0 | NF | no factor TF: 72-73 | | 2021-09-19 | -anonymous- | NF | no factor TF: 71-72 | | 2021-09-10 | SRBase | NF | no factor TF: 70-71 | | 2020-04-18 | lycorn | NF | no factor TF: 69-70 | | 2018-03-20 | ramgeis | NF | no factor TF: 68-69 | | 2018-03-20 | ramgeis | NF | no factor TF: 67-68 | | 2016-03-19 | Mark Rose | NF | no factor TF: 65-66 | | 2014-08-30 | Nesowa | NF | no factor TF: 66-67 | | 2006-12-18 | -anonymous- | C-LL | 5B0B9132F94EC412 | | 2003-05-11 | -anonymous- | C-LL | 5B0B9132F94EC412 | | 2002-12-31 | -anonymous- | NF-PM1 | B1=200000, B2=2250000 | | 2002-01-28 | FreeTibet | NF | no factor TF: 1-65 | | 2001-09-16 | Mike Curtis | NF | no factor TF: 1-61 | | 2001-03-25 | Net_Force | NF | no factor TF: 1-59 | | 2001-02-18 | Net_Force | NF | no factor TF: 1-58 | | 2000-02-23 | -anonymous- | NF | no factor TF: 1-53 |
|