| 3802241 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 259 / 280 |
Estimated T-Level: 24.6 ⓘ TF below 2^77 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Bjorn Skog | 20149C195C08C3CD | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | | Ars Technica Team Prime Rib | 20149C195C08C3CD | 2907205 | Windows,Prime95,v20,(aka WW1) | | Bad | 2000-04-12 | Terry S. Arnold | 2A615EACC2DF9C78 | 1647689 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-20 | fordobr | 717ABA5FBCD8E9C1 | 1 | 2466515 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-20 | Shaffer | CERT | Proof certified good | | 2025-01-20 | fordobr | C-PRP | M3802241/7455476445771180339383921 : 717ABA5FBCD8E9C1 Proof Certified Good
Proof Power: 7
| | 2025-01-20 | fordobr | F-ECM | Factor: 7455476445771180339383921 / ECM curve 36, B1=101179, B2=275660385, Edwards Sigma=2932734552463214 | | 2024-08-12 | Joss | NF-PM1 | B1=10000000, B2=13986682710 | | 2023-12-26 | Joss | NF-PM1 | B1=2333371, B2=4778283510 | | 2023-08-27 | Joss | NF-PM1 | B1=1000000, B2=1257446190 | | 2023-01-01 | Naegi Makoto | NF | no factor TF: 71-72 | | 2023-01-01 | Naegi Makoto | NF | no factor TF: 70-71 | | 2022-05-19 | DRobinsonPE | NF | no factor TF: 69-70 | | 2020-12-14 | axn | NF-PM1 | B1=30000000, B2=600000000 | | 2020-11-29 | axn | NF | no factor TF: 68-69 | | 2018-10-29 | TJAOI | NF | no factor TF: 67-68 | | 2016-11-15 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-05-11 | mikr | NF-PM1 | B1=2000000, B2=62000000, E=12 | | 2016-02-25 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-01-03 | Squeeky_Squirrel | NF-PM1 | B1=180000, B2=4950000, E=6 | | 2015-01-18 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-18 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-09-18 | Joss | NF-PM1 | B1=81881 | | 2012-02-29 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-11-06 | Squeeky_Squirrel | NF-PM1 | B1=65000, B2=1121250, E=6 | | 2011-02-11 | markr | NF | no factor TF: 61-62 | | 2009-02-28 | S485122 | NF | no factor TF: 60-61 | | 2000-04-12 | -anonymous- | C-LL | 2A615EACC2DF9C78 | | 2000-04-05 | -anonymous- | NF-PM1 | B1=20000, B2=240000 | | 2000-03-27 | -anonymous- | NF-PM1 | B1=20000, B2=245000 |
|
