| 4011467 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 271 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 186 / 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 |
|---|
| Bad | | Michal Rok | 417318246B275C42 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-10-15 | Chris Sanyk | 591DAD04A8DD8313 | 943784 | Windows,Prime95,v18,(aka WU1) | | Factored | 2000-01-12 | Carl Mikkelsen | 591DAD04A8DD8313 | 566004 | Linux 32-bit,Prime95,v17,(aka WT2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-19 | NStorm | D0F7194EBE19F7CD | 1 | 1325610 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-19 | linear | CERT | Proof certified good | | 2025-02-19 | NStorm | C-PRP | M4011467/27831311357969791397497 : D0F7194EBE19F7CD Proof Certified Good
Proof Power: 7
| | 2025-02-19 | NStorm | F-ECM | Factor: 27831311357969791397497 / ECM curve 61, B1=50000, B2=31134285, Edwards Sigma=8182579028647873 | | 2024-10-01 | yuriy_5-1 | NF-PM1 | B1=36103204, B2=611527226310 | | 2022-05-28 | DRobinsonPE | NF-PM1 | B1=6200000, B2=31912850970 | | 2022-03-23 | mikr | NF | no factor TF: 70-71 | | 2021-06-03 | ATH | NF-PP1 | Start=2/7, B1=2500000, B2=170000000 | | 2019-07-02 | mikr | NF | no factor TF: 69-70 | | 2019-07-02 | mikr | NF | no factor TF: 68-69 | | 2018-09-10 | mikr | NF | no factor TF: 67-68 | | 2017-11-06 | mikr | NF-PM1 | B1=4600000, B2=125000000, E=12 | | 2016-08-31 | kkmrkkblmbrbk | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 61-63 | | 2015-05-18 | snme2pm1 | NF | no factor TF: 65-66 | | 2015-01-02 | Nesowa | NF-PM1 | B1=225000, B2=4556250, E=6 | | 2013-10-20 | David Campeau | NF | no factor TF: 64-65 | | 2013-07-25 | Jayder | NF | no factor TF: 63-64 | | 2013-06-17 | Squeeky_Squirrel | NF-PM1 | B1=120000, B2=2280000, E=6 | | 2010-01-03 | Squeeky_Squirrel | NF-PM1 | B1=40000, B2=660000, E=6 | | 2009-11-06 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2003-12-13 | Team Prime Rib | NF-PM1 | B1=20000, B2=300000 | | 2001-09-22 | David Campeau | NF | no factor TF: 1-61 | | 2001-09-22 | -anonymous- | NF | no factor TF: 1-61 | | 2000-01-12 | foxkid | C-LL | 591DAD04A8DD8313 | | 1999-10-15 | -anonymous- | C-LL | 591DAD04A8DD8313 |
|
