| 3397057 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 248 / 280 |
Estimated T-Level: 24.4 ⓘ TF below 2^76 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Robert Friberg | 083C0553733A5F32 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-07-04 | Jody Sorensen | 083C0553733A5F32 | 3048497 | Windows,Prime95,v17,(aka WT1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-07 | Andrey Dobrynin | 89D2B32D16095D8A | 1 | 159699 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-07 | thunder | CERT | Proof certified good | | 2025-02-07 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-07 | Andrey Dobrynin | F-ECM | Factor: 726726772592568685967671 / ECM curve 25, B1=117431, B2=275660385, Edwards Sigma=5451352874926568 | | 2023-05-23 | Sid & Andy | NF-PM1 | B1=6100000, B2=22018266270 | | 2023-05-13 | Joss | NF-PM1 | B1=1000000, B2=887672940 | | 2021-09-02 | MadPoo 🙂 | NF | no factor TF: 69-70 | | 2021-07-26 | mikr | NF-PM1 | B1=4000000, B2=150000000 | | 2021-06-21 | TJAOI | NF | no factor TF: 68-69 | | 2021-06-06 | Numberwang | NF-PM1 | B1=1000000, B2=30000000 | | 2018-09-03 | TJAOI | NF | no factor TF: 67-68 | | 2017-03-12 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-07-16 | Joss | NF-PM1 | B1=320778, B2=8745000, E=6 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2015-10-31 | Squeeky_Squirrel | NF-PM1 | B1=165000, B2=4372500, E=6 | | 2015-04-05 | Gordon Spence | NF | no factor TF: 65-66 | | 2015-02-18 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-18 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-14 | Joss | NF-PM1 | B1=97788 | | 2014-07-04 | Joss | NF-PM1 | B1=78894 | | 2012-11-15 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-10-24 | USAFSS | NF-PM1 | B1=60000, B2=945000, E=6 | | 2011-08-11 | Grant McCracken | NF | no factor TF: 61-62 | | 2009-07-11 | Carsten Kossendey | NF-PM1 | B1=15000, B2=206250 | | 2009-03-25 | S485122 | NF | no factor TF: 60-61 | | 1999-07-04 | -anonymous- | C-LL | 083C0553733A5F32 |
|
