| 4444807 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 78 / 280 |
Estimated T-Level: 21.4 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | David A McGough | 0E0CE4040CB859C5 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | | Paul Victor Novarese | 0E0CE4040CB859C5 | 0 | Mlucas,Ernst Mayer,v2.5 and later,(aka E2) | | Factored | 2015-11-14 | MadPoo 🙂 | 0E0CE4040CB859C5 | 4162857 | Windows 64-bit,Prime95,v26,(aka We4) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-10 | fordobr | 20C0BDEBFCD2FEFF | 1 | 894213 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-10 | SciHacker | CERT | Proof certified good | | 2025-03-10 | fordobr | C-PRP | M4444807/12894172691615219496407 : 20C0BDEBFCD2FEFF Proof Certified Good
Proof Power: 7
| | 2025-03-10 | fordobr | F-ECM | Factor: 12894172691615219496407 / ECM curve 4, B1=72884, B2=88280115, Edwards Sigma=5701047530440330 | | 2024-11-17 | TheJudger | NF | no factor TF: 72-73 | | 2024-11-17 | TheJudger | NF | no factor TF: 71-72 | | 2023-02-18 | Sid & Andy | NF-PM1 | B1=6400000, B2=10304840700 | | 2021-08-09 | SRBase | NF | no factor TF: 70-71 | | 2021-07-22 | axn | NF | no factor TF: 69-70 | | 2021-05-10 | TJAOI | NF | no factor TF: 68-69 | | 2018-06-26 | ramgeis | NF | no factor TF: 67-68 | | 2018-06-26 | ramgeis | NF | no factor TF: 66-67 | | 2016-11-07 | mikr | NF-PM1 | B1=1800000, B2=68000000, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-11-14 | MadPoo 🙂 | C-LL | 0E0CE4040CB859C5 | | 2015-06-23 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-09-13 | monst | NF | no factor TF: 64-65 | | 2014-09-10 | Jayder | NF | no factor TF: 63-64 | | 2012-05-05 | Squeeky_Squirrel | NF-PM1 | B1=135000, B2=2733750, E=6 | | 2012-02-03 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-04-03 | Architects Cubed | NF | no factor TF: 61-62 | | 2009-08-07 | Carsten Kossendey | NF-PM1 | B1=25000, B2=356250 | | 1998-11-21 | -anonymous- | C-LL | 6393AE34A85A2E__ | | 1998-08-30 | -anonymous- | NF | no factor TF: 1-61 |
|
