| 5337107 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 68 / 280 |
Estimated T-Level: 21.2 ⓘ TF below 2^65 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-09-27 | Paul Westby | DF53CC550816A824 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-11-15 | Harry Reinhardt | DF53CC550816A824 | 2174833 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-05-02 | cramsey87 | 0E90C2B5C7DD6BE8 | 1 | 1467789 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-05-02 | Jurzal | CERT | Proof certified good | | 2025-05-02 | cramsey87 | C-PRP | M5337107/11408566408631733984913 : 0E90C2B5C7DD6BE8 Proof Certified Good
Proof Power: 7
| | 2025-02-28 | fordobr | F-ECM | Factor: 11408566408631733984913 / ECM curve 31, B1=50000, B2=60054225, Edwards Sigma=5447790295083395 | | 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 | | 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 | | 2009-10-16 | USAFSS | NF-PM1 | B1=60000, B2=990000, E=6 | | 2009-05-27 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-11-15 | -anonymous- | C-LL | DF53CC550816A824 | | 2000-05-31 | -anonymous- | NF-PM1 | B1=15000, B2=48750 | | 1998-09-27 | -anonymous- | C-LL | DF53CC550816A824 | | 1998-08-09 | Greg Hewgill | NF | no factor TF: 1-62 |
|
