| 25305829 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 275 TF target 270 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 34 / 280 |
Estimated T-Level: 20.6 ⓘ TF below 2^63 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2005-08-16 | C. Cooper / S. Boone | EB4BF405B65C58F9 | 13935605 | Windows,Prime95,v23,NT service,(aka WZ5) | | Factored | 2012-05-07 | Dubslow | EB4BF405B65C58F9 | 18346937 | Linux 64-bit,Prime95,v27.6,build 3 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2024-06-30 | Dobri | C63A3B1591470C81 | 1 | 3084259 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-06-30 | mrdedebl | CERT | Proof certified good | | 2024-06-30 | Dobri | C-PRP | M25305829/1960628047894628829367899247 : C63A3B1591470C81 Proof Certified Good
Proof Power: 8
| | 2024-05-13 | James Heinrich | NF | no factor TF: 68-69 | | 2021-12-25 | Anton Repko | F-PP1 | Factor: 1960628047894628829367899247 / Start=2/7, B1=2000000, B2=120000000 | | 2021-10-17 | TheJudger | NF | no factor TF: 74-75 | | 2021-10-01 | TheJudger | NF | no factor TF: 73-74 | | 2021-08-28 | TheJudger | NF | no factor TF: 72-73 | | 2021-08-28 | TheJudger | NF | no factor TF: 71-72 | | 2021-06-10 | mikr | NF | no factor TF: 70-71 | | 2017-03-19 | ramgeis | NF | no factor TF: 69-70 | | 2012-05-07 | Dubslow | C-LL | EB4BF405B65C58F9 | | 2012-01-02 | Carsten Kossendey | NF | no factor TF: 68-69 | | 2011-12-08 | Carsten Kossendey | NF | no factor TF: 67-68 | | 2005-08-16 | curtisc | C-LL | EB4BF405B65C58F9 | | 2005-08-01 | curtisc | NF-PM1 | B1=380000 | | 2004-07-02 | -anonymous- | NF | no factor TF: 1-67 | | 2004-01-18 | markr | NF | no factor TF: 1-62 | | 2001-08-24 | Matt | NF | no factor TF: 1-58 | | 2001-08-12 | Net_Force | NF | no factor TF: 1-56 |
|
