| 3859511 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 271 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 185 / 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 | | Robert Poling | 67E04EBADB47BE3B | 0 | Mac,John Sweeney,v1.4,(aka J3) | | Factored | 1999-09-22 | patrick | 67E04EBADB47BE3B | 1421631 | Linux 32-bit,Prime95,v18,(aka WU2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-06 | Andrey Dobrynin | 96FE9093B8CCA8F3 | 1 | 34445 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-06 | kerni3 | CERT | Proof certified good | | 2025-03-06 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-03-06 | Andrey Dobrynin | F-ECM | Factor: 226470737651206394091673 / ECM curve 18, B1=106855, B2=194573610, Edwards Sigma=1525320211501732 | | 2024-12-20 | TJAOI | NF | no factor TF: 70-71 | | 2022-04-29 | DRobinsonPE | NF-PM1 | B1=8700000, B2=44721426750 | | 2022-04-21 | DRobinsonPE | NF | no factor TF: 69-70 | | 2020-07-31 | TJAOI | NF | no factor TF: 68-69 | | 2019-01-25 | Yxinity | NF | no factor TF: 67-68 | | 2016-11-24 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-03-25 | Joss | NF-PM1 | B1=250905, B2=4516290, E=6 | | 2016-02-28 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-01-14 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-14 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-22 | Joss | NF-PM1 | B1=86630 | | 2012-02-20 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-10-21 | Squeeky_Squirrel | NF-PM1 | B1=70000, B2=1137500, E=6 | | 2011-02-23 | markr | NF | no factor TF: 61-62 | | 2009-07-27 | Carsten Kossendey | NF-PM1 | B1=20000, B2=275000 | | 2009-02-25 | S485122 | NF | no factor TF: 60-61 | | 1999-09-22 | -anonymous- | C-LL | 67E04EBADB47BE3B | | 1999-01-17 | -anonymous- | NF | no factor TF: 1-60 |
|
