| 5337373 | Composite: proven not-prime with Lucas-Lehmer test No factors below 272 TF target 266 |
| P-1 | | B1 = | 4000000 | | B2 = | 10285831710 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 167 / 280 |
Estimated T-Level: 23.0 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Verified | | Paul Victor Novarese | 5ACF2D05BAA9D9CC | 0 | Mlucas,Ernst Mayer,v2.5 and later,(aka E2) | | Verified | 1999-12-15 | Gordon Bower | 5ACF2D05BAA9D9CC | 920651 | Windows,Prime95,v18,(aka WU1) |
|
| History | | Date | User | Type | Result |
|---|
| 2024-06-20 | Naegi Makoto | NF | no factor TF: 71-72 | | 2022-09-14 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-02-14 | mikr | NF | no factor TF: 70-71 | | 2021-11-03 | TJAOI | NF | no factor TF: 69-70 | | 2020-08-24 | TJAOI | NF | no factor TF: 68-69 | | 2019-06-29 | King | NF-PM1 | B1=1000000, B2=22500000 | | 2019-02-19 | USAFSS | NF-PM1 | B1=320000, B2=9520000 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-08-06 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-25 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-25 | VictordeHollander | NF | no factor TF: 63-64 | | 2010-09-17 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=960000, E=6 | | 2009-08-23 | Carsten Kossendey | NF-PM1 | B1=25000, B2=343750 | | 2009-05-27 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 1999-12-15 | Gordon Bower | C-LL | 5ACF2D05BAA9D9CC | | 1998-04-05 | -anonymous- | NF | no factor TF: 1-62 | | 1998-03-03 | -anonymous- | NF | no factor TF: 1-61 |
|
