| 3855323 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 271 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 276 / 280 |
Estimated T-Level: 24.9 ⓘ TF below 2^78 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Anton Rebhan | DD059ED9DC700054 | 0 | Linux 32-bit,Prime95,v14,(aka WQ2) | | Factored | 1999-08-22 | Shmel de Tex | DD059ED9DC700054 | 683166 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-18 | fordobr | 2B0ED6DED570A6AA | 1 | 2069583 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-18 | Zitong Zhang | CERT | Proof certified good | | 2025-02-18 | fordobr | C-PRP | M3855323/683931130947236950836649 : 2B0ED6DED570A6AA Proof Certified Good
Proof Power: 7
| | 2025-02-18 | fordobr | F-ECM | Factor: 683931130947236950836649 / ECM curve 40, B1=103371, B2=194573610, Edwards Sigma=5976508753804731 | | 2025-01-17 | TJAOI | NF | no factor TF: 70-71 | | 2022-04-29 | mikr | NF-PM1 | B1=5000000, B2=405000000 | | 2022-04-24 | DRobinsonPE | NF-PM1 | B1=8700000, B2=27893266170 | | 2022-04-19 | DRobinsonPE | NF | no factor TF: 69-70 | | 2020-09-07 | TJAOI | NF | no factor TF: 68-69 | | 2019-02-08 | Yxinity | NF | no factor TF: 67-68 | | 2016-11-24 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-03-24 | Joss | NF-PM1 | B1=250905, B2=5516290, E=6 | | 2016-03-22 | Joss | NF-PM1 | B1=250905, B2=4516290, E=6 | | 2016-03-07 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2015-01-14 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-14 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-19 | Joss | NF-PM1 | B1=86648 | | 2012-02-20 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-10-22 | Squeeky_Squirrel | NF-PM1 | B1=70000, B2=1137500, E=6 | | 2011-02-27 | markr | NF | no factor TF: 61-62 | | 2009-07-27 | Carsten Kossendey | NF-PM1 | B1=20000, B2=275000 | | 2009-02-23 | S485122 | NF | no factor TF: 60-61 | | 1999-08-22 | -anonymous- | C-LL | DD059ED9DC700054 |
|
