| 3130031 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 186 / 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 | | Gordon M. Spence | 7DF3EC0EB57248C9 | 0 | Windows 16-bit,Prime95,v14,(aka WQ0) | | Bad | 1998-01-21 | Michael Taylor | 2899B1377CC3EFEA | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-08-16 | Carsten Straaberg | 7DF3EC0EB57248C9 | 1759632 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-10 | fordobr | F25305313553D9B1 | 1 | 797758 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-10 | Will K | CERT | Proof certified good | | 2025-02-10 | fordobr | C-PRP | M3130031/29090791997918980361959 : F25305313553D9B1 Proof Certified Good
Proof Power: 7
| | 2025-02-10 | fordobr | F-ECM | Factor: 29090791997918980361959 / ECM curve 7, B1=138337, B2=275660385, Edwards Sigma=8537702899025610 | | 2023-03-15 | Sid & Andy | NF-PM1 | B1=9500000, B2=24374334600 | | 2022-10-30 | Joss | NF-PM1 | B1=1000000, B2=265074810 | | 2022-10-14 | mikr | NF | no factor TF: 69-70 | | 2022-09-13 | Joss | NF-PM1 | B1=1000000, B2=118249950 | | 2021-07-28 | Joss | NF | no factor TF: 68-69 | | 2019-01-07 | TJAOI | NF | no factor TF: 67-68 | | 2018-12-23 | mikr | NF-PM1 | B1=3000000, B2=100000000, E=12 | | 2018-07-19 | Joss | NF-PM1 | B1=692144, B2=4845008 | | 2018-07-19 | Joss | NF-PM1 | B1=692144, B2=4152864 | | 2018-07-18 | Joss | NF-PM1 | B1=692144, B2=2768576 | | 2018-07-17 | Joss | NF-PM1 | B1=692144, B2=2076432 | | 2017-04-15 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-10-01 | Squeeky_Squirrel | NF-PM1 | B1=195000, B2=5460000, E=12 | | 2015-06-14 | Tha | NF | no factor TF: 65-66 | | 2015-02-11 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-11 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-03 | dbaugh | NF | no factor TF: 62-63 | | 2011-11-13 | Grant McCracken | NF | no factor TF: 61-62 | | 2011-09-03 | Squeeky_Squirrel | NF-PM1 | B1=105000, B2=2152500, E=6 | | 2009-04-11 | S485122 | NF | no factor TF: 60-61 | | 2004-02-07 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 2003-12-23 | markr | NF-PM1 | B1=15000, B2=217500 | | 2001-05-06 | David Campeau | NF | no factor TF: 1-60 | | 1999-08-16 | -anonymous- | C-LL | 7DF3EC0EB57248C9 | | 1998-01-21 | -anonymous- | NF | no factor TF: 1-59 | | 1998-01-21 | -anonymous- | C-LL | 2899B1377CC3EFEA |
|
