| 83127511 | Composite: proven not-prime with Lucas-Lehmer test No factors below 276 TF target 275 |
| P-1 | |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2018-02-03 | -anonymous- | D2CCDF00385CC31C | 24664951 | Windows 64-bit,Prime95,v29.4,build 5 | | Verified | 2025-12-20 | Greg | D2CCDF00385CC31C | 0 | Linux64,prpll,v7.5 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-20 | Greg | C-LL | D2CCDF00385CC31C | | 2018-02-03 | -anonymous- | C-LL | D2CCDF00385CC31C | | 2016-12-24 | dh1 | NF | no factor TF: 75-76 | | 2016-12-12 | TheJudger | NF-PM1 | B1=710000, B2=14555000, E=12 | | 2016-12-03 | dh1 | NF | no factor TF: 74-75 | | 2016-12-03 | dh1 | NF | no factor TF: 73-74 | | 2016-12-03 | dh1 | NF | no factor TF: 72-73 | | 2016-12-03 | dh1 | NF | no factor TF: 71-72 | | 2014-03-02 | forrest-lumpkin | NF | no factor TF: 70-71 | | 2013-10-15 | SMoffat | NF | no factor TF: 69-70 | | 2013-10-13 | SMoffat | NF | no factor TF: 68-69 | | 2013-10-11 | SMoffat | NF | no factor TF: 67-68 | | 2013-02-10 | Cire Sivad | NF | no factor TF: 66-67 | | 2012-08-13 | Carsten Kossendey | NF | no factor TF: 65-66 | | 2010-12-06 | Architects Cubed | NF | no factor TF: 64-65 |
|
