| 87868147 | Composite: proven not-prime with both PRP and Lucas-Lehmer tests No factors below 278 TF target 275 |
| P-1 | |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2020-02-14 | Quicksilver | 8754BB089CD73860 | 66908054 | Windows 64-bit,Prime95,v29.4,build 8 | | Verified | 2021-11-29 | kxLDccU | 8754BB089CD73860 | 26666519 | FreeBSD 64-bit,Prime95,v30.3,build 6 |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2020-01-24 | Fan Ming | 3B4A15A5628972D0 | 0 | 1 | 3 | | Verified | Certified Good Power=9 | 2025-11-05 | Walleye24 | 3B4A15A5628972D0 | 0 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-11-05 | Ken | CERT | Proof certified good | | 2025-11-05 | Walleye24 | C-PRP | 3B4A15A5628972D0 Proof Certified Good
Proof Power: 9
| | 2021-11-29 | kxLDccU | C-LL | 8754BB089CD73860 | | 2020-02-14 | Quicksilver | C-LL | 8754BB089CD73860 | | 2020-01-24 | Fan Ming | C-PRP | 3B4A15A5628972D0 | | 2020-01-15 | ViliamF | NF | no factor TF: 76-77 | | 2020-01-15 | ViliamF | NF | no factor TF: 77-78 | | 2018-07-23 | Oliver Kruse | NF-PM1 | B1=715000, B2=14121250, E=12 | | 2018-05-03 | Strolling Jellyfish | NF | no factor TF: 75-76 | | 2018-05-02 | Strolling Jellyfish | NF | no factor TF: 74-75 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 73-74 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 72-73 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 71-72 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 70-71 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 69-70 | | 2013-03-14 | Jacques MOLNE | NF | no factor TF: 68-69 | | 2013-03-09 | SMoffat | NF | no factor TF: 67-68 | | 2013-03-08 | SMoffat | NF | no factor TF: 66-67 | | 2013-03-07 | SMoffat | NF | no factor TF: 65-66 | | 2010-11-19 | Architects Cubed | NF | no factor TF: 64-65 |
|
