| 4400777 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 88 / 280 |
Estimated T-Level: 21.6 ⓘ TF below 2^67 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-05-23 | Kelly Price | 097BEE353E8335F5 | 0 | Linux 32-bit,Prime95,v14,(aka WQ2) | | Factored | 1999-11-24 | Norman Hein | 097BEE353E8335F5 | 2753796 | Windows,Prime95,v19,(aka WV1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-02-27 | fordobr | 5ABAF74EADB86485 | 1 | 993493 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-27 | Nick Thorpe | CERT | Proof certified good | | 2025-02-27 | fordobr | C-PRP | M4400777/38086051207871673866953 : 5ABAF74EADB86485 Proof Certified Good
Proof Power: 7
| | 2025-02-27 | fordobr | F-ECM | Factor: 38086051207871673866953 / ECM curve 8, B1=72108, B2=88280115, Edwards Sigma=2011593585541110 | | 2024-07-03 | Jason Lynch | NF-PM1 | B1=21578000, B2=297267270300 | | 2021-08-19 | One Man | NF | no factor TF: 72-73 | | 2021-08-18 | One Man | NF | no factor TF: 71-72 | | 2021-08-18 | One Man | NF | no factor TF: 70-71 | | 2021-08-17 | SRBase | NF | no factor TF: 69-70 | | 2021-07-27 | axn | NF-PM1 | B1=10000000, B2=500000000 | | 2021-07-22 | TJAOI | NF | no factor TF: 68-69 | | 2018-06-17 | ramgeis | NF | no factor TF: 67-68 | | 2018-01-20 | BloodERazor | NF | no factor TF: 66-67 | | 2016-06-27 | mikr | NF-PM1 | B1=1800000, B2=68000000, E=12 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-06-20 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-08-05 | lycorn | NF | no factor TF: 64-65 | | 2014-08-04 | Jayder | NF | no factor TF: 63-64 | | 2012-04-05 | Squeeky_Squirrel | NF-PM1 | B1=135000, B2=2733750, E=6 | | 2012-03-23 | Squeeky_Squirrel | NF-PM1 | B1=105000, B2=1916250, E=6 | | 2012-01-17 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-11-02 | markr | NF | no factor TF: 61-62 | | 2009-07-16 | Carsten Kossendey | NF-PM1 | B1=25000, B2=356250 | | 2002-02-10 | David Campeau | NF | no factor TF: 1-61 | | 1999-11-24 | -anonymous- | C-LL | 097BEE353E8335F5 | | 1998-05-23 | -anonymous- | C-LL | 097BEE353E8335F5 |
|
