| 3761893 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 66 / 640 |
Estimated T-Level: 25.5 ⓘ TF below 2^80 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-08-24 | INTERSHOP Communications | 953DC2077A105A28 | 0 | Windows,Prime95,v16,NT service,(aka WS5) | | Factored | 1999-08-16 | Andy Kohler | 953DC2077A105A28 | 2590311 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-15 | fordobr | 9815D04BB20BB57B | 1 | 558518 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-15 | wakirksey | CERT | Proof certified good | | 2025-01-15 | fordobr | C-PRP | M3761893/22677333648530353860689 : 9815D04BB20BB57B Proof Certified Good
Proof Power: 7
| | 2025-01-15 | fordobr | F-ECM | Factor: 22677333648530353860689 / ECM curve 49, B1=103376, B2=275600416, Edwards Sigma=4339914768543861 | | 2023-06-11 | Sid & Andy | NF-PM1 | B1=8500000, B2=14323628550 | | 2023-02-12 | Joss | NF-PM1 | B1=1000000, B2=428691900 | | 2022-10-25 | Joss | NF-PM1 | B1=1000000, B2=130364850 | | 2021-03-28 | axn | NF | no factor TF: 69-70 | | 2020-12-06 | axn | NF | no factor TF: 68-69 | | 2019-02-08 | Yxinity | NF | no factor TF: 67-68 | | 2019-01-28 | TJAOI | NF | no factor TF: 67-68 | | 2016-11-09 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-28 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2016-01-10 | mikr | NF-PM1 | B1=1600000, B2=66000000, E=12 | | 2015-01-25 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-25 | VictordeHollander | NF | no factor TF: 63-64 | | 2012-04-04 | Squeeky_Squirrel | NF-PM1 | B1=110000, B2=2035000, E=6 | | 2012-03-23 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-05-05 | markr | NF | no factor TF: 61-62 | | 2009-07-11 | Carsten Kossendey | NF-PM1 | B1=20000, B2=265000 | | 2009-03-03 | S485122 | NF | no factor TF: 60-61 | | 1999-08-16 | akohler | C-LL | 953DC2077A105A28 | | 1998-08-24 | netconx | C-LL | 953DC2077A105A28 | | 1998-08-02 | netconx | NF | no factor TF: 1-60 |
|
