| 2730577 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 60 / 640 |
Estimated T-Level: 25.5 ⓘ TF below 2^80 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Robert R. Fenichel | 6266123B638233A8 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-05-02 | David Kazdan | 6266123B638233A8 | 1498802 | Windows,Prime95,v18,(aka WU1) | | Factored | 2018-08-08 | kkmrkkblmbrbk | 6266123B638233A8 | 38114 | Windows 64-bit,Prime95,v29.4,build 5 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-22 | fordobr | C804A9FD4D6E9D9E | 1 | 919135 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-22 | Wentao Huang | CERT | Proof certified good | | 2025-01-22 | fordobr | C-PRP | M2730577/57827457604196263282993481 : C804A9FD4D6E9D9E Proof Certified Good
Proof Power: 7
| | 2025-01-22 | fordobr | F-ECM | Factor: 57827457604196263282993481 / ECM curve 15, B1=169679, B2=616193655, Edwards Sigma=7958367328587483 | | 2024-01-03 | Numberwang | NF-PM1 | B1=270000, B2=1283160060 | | 2023-12-19 | TJAOI | NF | no factor TF: 69-70 | | 2023-03-14 | Architects Cubed | NF-PM1 | B1=5000000, B2=8681331750 | | 2023-01-31 | Joss | NF-PM1 | B1=1000000, B2=457236780 | | 2021-08-02 | TJAOI | NF | no factor TF: 68-69 | | 2019-02-13 | chuenkit | NF | no factor TF: 67-68 | | 2018-08-08 | kkmrkkblmbrbk | C-LL | 6266123B638233A8 | | 2017-10-05 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-10-22 | mikr | NF-PM1 | B1=2700000, B2=84000000, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2016-02-01 | ramgeis | NF | no factor TF: 65-66 | | 2015-04-13 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-04-13 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-14 | dbaugh | NF | no factor TF: 62-63 | | 2012-04-13 | markr | NF | no factor TF: 61-62 | | 2011-04-26 | James Heinrich | NF-PM1 | B1=185000, B2=4625000, E=6 | | 2011-01-19 | Joss | NF-PM1 | B1=50000 | | 2010-12-28 | Joss | NF-PM1 | B1=30000 | | 2010-12-19 | Joss | NF-PM1 | B1=20000 | | 2009-01-30 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-11-28 | Team Prime Rib | NF-PM1 | B1=15000, B2=225000 | | 2003-11-16 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-05-02 | -anonymous- | C-LL | 6266123B638233A8 |
|
