| 11297021 | Composite: proven not-prime with Lucas-Lehmer test No factors below 274 TF target 268 |
| P-1 | | B1 = | 10000000 | | B2 = | 20021278200 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 2 / 280 |
Estimated T-Level: 20.0 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | 2002-04-20 | Keith Costello | 1CDFBC24F0B81124 | 9637269 | Windows,Prime95,v20,NT service,(aka WW5) | | Verified | 2004-02-07 | Marc Getty | 1CDFBC24F0B81124 | 5631318 | Windows,Prime95,v23,NT service,(aka WZ5) |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-01 | vsh | NF | no factor TF: 73-74 | | 2024-11-13 | vsh | NF | no factor TF: 72-73 | | 2024-05-09 | vsh | NF-PM1 | B1=10000000, B2=20021278200 | | 2021-12-19 | LaurV | NF-PM1 | B1=6189107, B2=185673210 | | 2021-10-31 | SRBase | NF | no factor TF: 71-72 | | 2021-08-14 | SRBase | NF | no factor TF: 70-71 | | 2021-08-06 | SRBase | NF | no factor TF: 69-70 | | 2017-12-27 | ramgeis | NF | no factor TF: 68-69 | | 2017-12-27 | ramgeis | NF | no factor TF: 67-68 | | 2016-01-04 | VictordeHollander | NF | no factor TF: 66-67 | | 2015-02-08 | Numberwang | NF | no factor TF: 65-66 | | 2013-11-20 | lycorn | NF | no factor TF: 64-65 | | 2012-05-22 | James Heinrich | NF-PM1 | B1=220000, B2=5225000, E=6 | | 2004-02-07 | -anonymous- | C-LL | 1CDFBC24F0B81124 | | 2002-04-20 | KC | C-LL | 1CDFBC24F0B81124 | | 2002-02-24 | KC | NF-PM1 | B1=160000, B2=160000 | | 2000-11-25 | -anonymous- | NF-PM1 | B1=135000, B2=1721250 | | 1999-12-23 | Mark Blanke | NF | no factor TF: 1-64 |
|
