| 15135397 | Composite: proven not-prime with both PRP and Lucas-Lehmer tests No factors below 277 TF target 269 |
| P-1 | | B1 = | 45983977 | | B2 = | 6023900987 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 634 / 640 |
Estimated T-Level: 30.0 ⓘ TF below 2^95 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Bad | 2002-04-14 | Dan Kruger | BCA8BB094E2A4C56 | 9455228 | Windows,Prime95,v21,(aka WX1) | | Verified | 2005-04-26 | Ars Technica Team Prime Rib | 20FEFE5D788B739E | 623952 | Windows,Prime95,v23,(aka WZ1) | | Verified | 2006-05-12 | roberto | 20FEFE5D788B739E | 2856086 | Windows,Prime95,v24 final,(aka Wc1) |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Verified | Certified Good Power=8 | 2025-02-14 | kkmrkkblmbrbk | E4D3E69DCAE3D00F | 1898310 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-14 | Generic Username 3485 | CERT | Proof certified good | | 2025-02-14 | kkmrkkblmbrbk | C-PRP | E4D3E69DCAE3D00F Proof Certified Good
Proof Power: 8
| | 2024-06-18 | kkmrkkblmbrbk | NF-PP1 | Start=6/5, B1=45983977, B2=45937993023 | | 2024-05-22 | kkmrkkblmbrbk | NF | no factor TF: 76-77 | | 2024-05-20 | kkmrkkblmbrbk | NF | no factor TF: 75-76 | | 2024-05-20 | kkmrkkblmbrbk | NF | no factor TF: 74-75 | | 2024-05-19 | kkmrkkblmbrbk | NF | no factor TF: 73-74 | | 2022-10-16 | ATH | NF-PP1 | Start=2/7, B1=1000000, B2=29000000 | | 2022-02-19 | Praxeis | NF | no factor TF: 72-73 | | 2021-10-15 | -anonymous- | NF | no factor TF: 71-72 | | 2021-09-02 | SRBase | NF | no factor TF: 70-71 | | 2021-07-05 | Oliver Kruse | NF-PM1 | B1=45983977, B2=6023900987 | | 2021-06-29 | lycorn | NF | no factor TF: 69-70 | | 2017-10-11 | ramgeis | NF | no factor TF: 68-69 | | 2017-01-23 | Conductor | NF | no factor TF: 67-68 | | 2016-03-16 | Mark Rose | NF | no factor TF: 65-66 | | 2014-05-14 | Nesowa | NF | no factor TF: 66-67 | | 2006-05-12 | -anonymous- | C-LL | 20FEFE5D788B739E | | 2005-04-26 | Team Prime Rib | C-LL | 20FEFE5D788B739E | | 2002-04-14 | dakruger | C-LL | BCA8BB094E2A4C56 | | 2002-03-24 | dakruger | NF-PM1 | B1=170000, B2=2465000 | | 2001-01-21 | -anonymous- | NF | no factor TF: 1-65 | | 2000-12-31 | Net_Force | NF | no factor TF: 1-57 | | 2000-12-31 | Net_Force | NF | no factor TF: 1-58 |
|
