| 5324923 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 62 / 280 |
Estimated T-Level: 21.1 ⓘ TF below 2^65 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-07-29 | Louis Towles | 97BFFC022691D988 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-12-07 | Grzegorz Plonka | 97BFFC022691D988 | 5286016 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-03 | ATH | 4C9EB96450C3472F | 1 | 2423997 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-03 | nadu | CERT | Proof certified good | | 2025-03-03 | ATH | C-PRP | M5324923/9945819604906108327319561 : 4C9EB96450C3472F Proof Certified Good
Proof Power: 7
| | 2025-02-26 | Ruslan Borisov | F-ECM | Factor: 9945819604906108327319561 / ECM curve 32, B1=50000, B2=35542122, Edwards Sigma=635328500502522 | | 2024-09-14 | Andrew B | NF | no factor TF: 71-72 | | 2022-09-09 | Sid & Andy | NF-PM1 | B1=4000000, B2=10285831710 | | 2022-02-10 | mikr | NF | no factor TF: 70-71 | | 2022-01-22 | Gordon Spence | NF | no factor TF: 69-70 | | 2020-08-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-06-18 | King | NF-PM1 | B1=1000000, B2=22500000 | | 2018-06-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-08-04 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-16 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-26 | VictordeHollander | NF | no factor TF: 64-65 | | 2014-12-26 | VictordeHollander | NF | no factor TF: 63-64 | | 2009-11-15 | USAFSS | NF-PM1 | B1=60000, B2=990000, E=6 | | 2009-05-27 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-12-07 | greg_plonka | C-LL | 97BFFC022691D988 | | 2000-08-24 | greg_plonka | NF-PM1 | B1=20000, B2=20000 | | 1998-07-29 | -anonymous- | C-LL | 97BFFC022691D988 | | 1998-05-16 | Amperio | NF | no factor TF: 1-62 | | 1998-05-08 | -anonymous- | NF | no factor TF: 1-61 | | 1998-03-03 | -anonymous- | NF | no factor TF: 1-61 |
|
