| 4392133 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 167 / 280 |
Estimated T-Level: 23.0 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Janne Bergman | 1CDA8A010E9BEF14 | 0 | Linux 32-bit,Prime95,v15,(aka WR2) | | Factored | 2001-07-29 | warren piece | 1CDA8A010E9BEF14 | 1826478 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-10 | fordobr | 0EDB0D413211186B | 1 | 3916883 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-10 | Onorato_Lasarte | CERT | Proof certified good | | 2025-02-10 | fordobr | C-PRP | M4392133/139113200616726145680383687 : 0EDB0D413211186B Proof Certified Good
Proof Power: 7
| | 2025-02-10 | fordobr | F-ECM | Factor: 139113200616726145680383687 / ECM curve 40, B1=68066, B2=88213536, Edwards Sigma=8485508978470992 | | 2022-12-21 | DRobinsonPE | NF-PM1 | B1=6200000, B2=29438922240 | | 2022-10-08 | Kevin_9611 | NF-PM1 | B1=260000, B2=111707310 | | 2021-02-11 | -anonymous- | NF | no factor TF: 72-73 | | 2021-01-28 | -anonymous- | NF | no factor TF: 71-72 | | 2021-01-28 | -anonymous- | NF | no factor TF: 70-71 | | 2021-01-24 | -anonymous- | NF | no factor TF: 69-70 | | 2021-01-24 | -anonymous- | NF | no factor TF: 68-69 | | 2018-10-30 | chuenkit | NF | no factor TF: 67-68 | | 2018-05-04 | chuenkit | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-20 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-07-29 | lycorn | NF | no factor TF: 64-65 | | 2014-07-29 | Jayder | NF | no factor TF: 63-64 | | 2013-09-21 | Squeeky_Squirrel | NF-PM1 | B1=150000, B2=3675000, E=6 | | 2012-01-19 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-04-25 | USAFSS | NF-PM1 | B1=50000, B2=775000, E=6 | | 2010-11-05 | markr | NF | no factor TF: 61-62 | | 2002-04-20 | David Campeau | NF | no factor TF: 1-61 | | 2001-07-29 | -anonymous- | C-LL | 1CDA8A010E9BEF14 | | 2001-06-23 | -anonymous- | NF-PM1 | B1=20000, B2=205000 | | 1999-11-10 | -anonymous- | C-LL | 98932922E6D825__ |
|
