| 3828229 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 12 / 280 |
Estimated T-Level: 20.2 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | John Lloyd | ED3DFC662B1680C8 | 0 | Windows,Prime95,v14,NT service,(aka WQ5) | | Factored | 1999-08-16 | Goede Schueler/Christoph Steinbeck | ED3DFC662B1680C8 | 2661071 | Windows,Prime95,v17,NT service,(aka WT5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2020-09-07 | storm5510 | 868F1A9E1696301E | 1 | 2542598 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-05-25 | Joss | NF-PM1 | B1=100000, B2=130364850 | | 2022-03-22 | Joss | NF-PM1 | B1=100000 | | 2022-03-03 | Joss | NF-PM1 | B1=90000 | | 2020-09-07 | George Woltman | CERT | Proof certified good | | 2020-09-07 | storm5510 | C-PRP | M3828229/396757736589011710439 : 868F1A9E1696301E Proof Certified Good
Proof Power: 7
| | 2020-09-07 | TJAOI | F | Factor: 396757736589011710439 / TF: 68-69 | | 2018-09-24 | TJAOI | NF | no factor TF: 67-68 | | 2016-11-18 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-08-10 | Joss | NF-PM1 | B1=439084, B2=4390840, E=6 | | 2016-07-30 | Joss | NF-PM1 | B1=439084, B2=2195420, E=6 | | 2016-03-05 | 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 | | 2016-02-16 | Joss | NF-PM1 | B1=219542, B2=2195420, E=6 | | 2015-01-18 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-18 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-14 | Joss | NF-PM1 | B1=86766 | | 2012-03-23 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-10-31 | Squeeky_Squirrel | NF-PM1 | B1=70000, B2=1137500, E=6 | | 2011-03-15 | markr | NF | no factor TF: 61-62 | | 2009-07-27 | Carsten Kossendey | NF-PM1 | B1=20000, B2=270000 | | 2009-02-27 | S485122 | NF | no factor TF: 60-61 | | 1999-08-16 | -anonymous- | C-LL | ED3DFC662B1680C8 |
|
