| 3093283 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 183 / 280 |
Estimated T-Level: 23.3 ⓘ TF below 2^72 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-01-16 | Michael D. Dirmeier | FF0DD7D920EFCB53 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-06-26 | Thomas Colton | FF0DD7D920EFCB53 | 3076757 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-21 | Andrey Dobrynin | ED2AA2C4C02B9F11 | 1 | 2428830 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-21 | 0x | CERT | Proof certified good | | 2025-02-21 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-21 | Andrey Dobrynin | F-ECM | Factor: 1075038511288991737775121047 / ECM curve 7, B1=135833, B2=275660385, Edwards Sigma=7348869726659191 | | 2023-01-09 | Sid & Andy | NF-PM1 | B1=8900000, B2=22843291380 | | 2022-10-30 | Joss | NF-PM1 | B1=1000000, B2=265074810 | | 2022-10-01 | Joss | NF-PM1 | B1=1000000, B2=118249950 | | 2022-06-02 | mikr | NF | no factor TF: 69-70 | | 2021-03-01 | TJAOI | NF | no factor TF: 68-69 | | 2018-08-19 | ramgeis | NF | no factor TF: 67-68 | | 2018-05-08 | mikr | NF-PM1 | B1=3000000, B2=100000000, E=12 | | 2017-05-18 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-04-17 | Joss | NF-PM1 | B1=200000, B2=6171602, E=6 | | 2015-06-11 | Tha | NF | no factor TF: 65-66 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-07 | dbaugh | NF | no factor TF: 62-63 | | 2011-12-01 | Sid & Andy | NF | no factor TF: 61-62 | | 2011-08-16 | USAFSS | NF-PM1 | B1=100000, B2=2125000, E=6 | | 2009-07-03 | Carsten Kossendey | NF-PM1 | B1=15000, B2=180000 | | 2009-02-13 | Sturle Sunde | NF | no factor TF: 60-61 | | 2004-02-14 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 2001-07-17 | David Campeau | NF | no factor TF: 1-60 | | 1999-06-26 | -anonymous- | C-LL | FF0DD7D920EFCB53 | | 1998-06-07 | -anonymous- | C-LL | FF0DD7D920EFCB53 | | 1998-06-07 | -anonymous- | NF | no factor TF: 1-59 | | 1998-01-16 | -anonymous- | C-LL | FF0DD7D920EFCB53 | | 1998-01-13 | -anonymous- | NF | no factor TF: 1-59 |
|
