| 5332157 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 36 / 280 |
Estimated T-Level: 20.6 ⓘ TF below 2^64 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-08-16 | John Wyszynski | 016D9F001F37023B | 0 | Linux 32-bit,Prime95,v16,(aka WS2) | | Factored | 2000-11-25 | robbie Deighton | 016D9F001F37023B | 3117820 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-06 | Vamazing_ | E3F81779CC58458B | 1 | 1611501 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-06 | Chuck | CERT | Proof certified good | | 2025-03-06 | Vamazing_ | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-27 | Andrey Dobrynin | F-ECM | Factor: 55973890132472323357637783 / ECM curve 14, B1=50000, B2=64850000, Edwards Sigma=7985339862507824 | | 2024-07-30 | riccardo uberti | NF | no factor TF: 71-72 | | 2022-08-13 | Sid & Andy | NF-PM1 | B1=4000000, B2=10296725670 | | 2022-02-12 | mikr | NF | no factor TF: 70-71 | | 2022-01-05 | TJAOI | NF | no factor TF: 69-70 | | 2020-08-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-06-24 | 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 | | 2010-09-15 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=990000, E=6 | | 2009-05-27 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-11-25 | -anonymous- | C-LL | 016D9F001F37023B | | 2000-10-15 | -anonymous- | NF-PM1 | B1=25000, B2=206250 | | 2000-05-31 | -anonymous- | NF-PM1 | B1=20000, B2=160000 | | 1998-09-13 | -anonymous- | NF | no factor TF: 1-62 | | 1998-09-06 | -anonymous- | NF | no factor TF: 1-62 | | 1998-08-16 | -anonymous- | C-LL | 016D9F001F37023B | | 1998-06-20 | -anonymous- | NF | no factor TF: 1-62 | | 1998-03-03 | -anonymous- | NF | no factor TF: 1-61 |
|
