| 81236587 | Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime No factors below 275 TF target 275 |
| P-1 | | B1 = | 7200000 | | B2 = | 1800654450 |
|
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Unverified | 2017-09-11 | David M. Weatherell | D33D1772EA4DB6__ | 71010011 | Windows 64-bit,Prime95,v28.5,build 2 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-01-21 | Ensigma | NF-PM1 | B1=7200000, B2=1800654450 | | 2026-01-07 | Ensigma | NF-PM1 | B1=7200000 | | 2017-09-11 | David M. Weatherell | C-LL | D33D1772EA4DB6__ | | 2017-05-27 | arnaud | NF-PM1 | B1=675000, B2=12150000 | | 2016-10-01 | -anonymous- | NF | no factor TF: 74-75 | | 2016-10-01 | -anonymous- | NF | no factor TF: 73-74 | | 2016-10-01 | -anonymous- | NF | no factor TF: 72-73 | | 2016-10-01 | -anonymous- | NF | no factor TF: 71-72 | | 2013-11-08 | ITS | NF | no factor TF: 70-71 | | 2013-08-24 | ebravick | NF | no factor TF: 69-70 | | 2013-06-20 | Per Jessen | NF | no factor TF: 68-69 | | 2013-06-13 | Per Jessen | NF | no factor TF: 67-68 | | 2013-01-27 | Cow_tipping | NF | no factor TF: 66-67 | | 2011-02-24 | Gnorfe | NF | no factor TF: 65-66 | | 2010-12-12 | Architects Cubed | NF | no factor TF: 64-65 |
|
