| 5528933 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 101 / 280 |
Estimated T-Level: 21.8 ⓘ TF below 2^67 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-10-07 | Gordon Bower | 44D6374F74E8BE65 | 1046470 | Windows,Prime95,v18,(aka WU1) | | Factored | 2001-05-13 | Chris Snyder | 44D6374F74E8BE65 | 2675547 | Windows,Prime95,v20,NT service,(aka WW5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-04-04 | Perig | 2A58D8B9BE6FF6A1 | 1 | 5324032 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-04-04 | LookAS | CERT | Proof certified good | | 2025-04-04 | Perig | C-PRP | M5528933/6527017147352276862031 : 2A58D8B9BE6FF6A1 Proof Certified Good
Proof Power: 7
| | 2025-03-30 | fordobr | F-ECM | Factor: 6527017147352276862031 / ECM curve 45, B1=50000, B2=64857975, Edwards Sigma=8576915408474524 | | 2021-11-01 | axn | NF-PM1 | B1=8000000, B2=400000000 | | 2021-10-13 | SRBase | NF | no factor TF: 71-72 | | 2021-08-30 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2020-08-17 | TJAOI | NF | no factor TF: 68-69 | | 2019-09-09 | GdS | NF-PM1 | B1=200000, B2=6000000 | | 2018-07-05 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-22 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-62 | | 2015-08-31 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-12-08 | monst | NF | no factor TF: 64-65 | | 2014-12-07 | Nesowa | NF | no factor TF: 63-64 | | 2009-05-24 | Rob_Dee | NF-PM1 | B1=65000, B2=1121250, E=6 | | 2009-04-28 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2001-05-13 | Chris Snyder | C-LL | 44D6374F74E8BE65 | | 2001-02-11 | Chris Snyder | NF-PM1 | B1=20000, B2=20000 | | 2000-10-22 | -anonymous- | NF-PM1 | B1=20000, B2=20000 | | 1999-10-07 | Gordon Bower | C-LL | 44D6374F74E8BE65 |
|
