| 3982333 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 271 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 256 / 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 | | Jonathan Larmour | 781D819F050039A8 | 0 | Linux 32-bit,Prime95,v14,(aka WQ2) | | Factored | 1999-11-04 | Brian Scearce | 781D819F050039A8 | 2526958 | Linux 32-bit,Prime95,v19,(aka WV2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-14 | Andrey Dobrynin | 93E762A97D9D2961 | 1 | 1889958 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-14 | ky0uraku | CERT | Proof certified good | | 2025-02-14 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-02-14 | Andrey Dobrynin | F-ECM | Factor: 149652829264706898039073 / ECM curve 42, B1=94255, B2=90084225, Edwards Sigma=5099329925089013 | | 2023-07-04 | Sid & Andy | NF-PM1 | B1=5100000, B2=15749383650 | | 2022-05-03 | mikr | NF-PM1 | B1=5000000, B2=405000000 | | 2022-02-27 | King | NF-PM1 | B1=1600000, B2=81600000 | | 2021-06-03 | -anonymous- | NF | no factor TF: 70-71 | | 2021-05-15 | axn | NF | no factor TF: 69-70 | | 2020-06-12 | TJAOI | NF | no factor TF: 68-69 | | 2018-12-20 | Yxinity | NF | no factor TF: 67-68 | | 2016-12-16 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-01-28 | ramgeis | NF | no factor TF: 65-66 | | 2015-09-18 | Squeeky_Squirrel | NF-PM1 | B1=245000, B2=6860000, E=12 | | 2014-11-25 | Joss | NF-PM1 | B1=86117 | | 2013-10-22 | David Campeau | NF | no factor TF: 64-65 | | 2013-07-08 | Jayder | NF | no factor TF: 63-64 | | 2012-02-20 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-09-16 | Squeeky_Squirrel | NF-PM1 | B1=70000, B2=1190000, E=6 | | 2011-03-22 | Grant McCracken | NF | no factor TF: 61-62 | | 2009-07-27 | Carsten Kossendey | NF-PM1 | B1=20000, B2=290000 | | 2001-08-12 | David Campeau | NF | no factor TF: 1-61 | | 1999-11-04 | -anonymous- | C-LL | 781D819F050039A8 |
|
