| 5488823 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 272 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 26 / 280 |
Estimated T-Level: 20.5 ⓘ TF below 2^63 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-09-06 | Carlos Santillan | F4B30752D8448A83 | 0 | Windows,Prime95,v16,NT service,(aka WS5) | | Factored | 2000-11-15 | Ethan Hansen | F4B30752D8448A83 | 551293 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-03-28 | Perig | BC74FC5523E1CC22 | 1 | 2208225 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-28 | curtisc | CERT | Proof certified good | | 2025-03-28 | Perig | C-PRP | M5488823/23164265830021538148151 : BC74FC5523E1CC22 Proof Certified Good
Proof Power: 7
| | 2025-03-23 | fordobr | F-ECM | Factor: 23164265830021538148151 / ECM curve 9, B1=50000, B2=64857975, Edwards Sigma=624252151587725 | | 2022-07-18 | Sid & Andy | NF-PM1 | B1=5000000, B2=6418231050 | | 2021-09-19 | SRBase | NF | no factor TF: 71-72 | | 2021-08-22 | SRBase | NF | no factor TF: 70-71 | | 2021-08-18 | SRBase | NF | no factor TF: 69-70 | | 2020-08-24 | TJAOI | NF | no factor TF: 68-69 | | 2020-06-01 | King | NF-PM1 | B1=1000000, B2=22500000 | | 2018-06-29 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-08 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-08-25 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-11-23 | lycorn | NF | no factor TF: 64-65 | | 2014-11-23 | lycorn | NF | no factor TF: 63-64 | | 2010-11-17 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=975000, E=6 | | 2009-05-03 | GrunwalderGIMP | NF | no factor TF: 62-63 | | 2000-11-15 | Dry Creek Photo | C-LL | F4B30752D8448A83 | | 2000-07-12 | Gordon Spence | NF-PM1 | B1=25000, B2=318750 | | 1998-09-06 | -anonymous- | C-LL | F4B30752D8448A83 | | 1998-06-01 | -anonymous- | NF | no factor TF: 1-62 | | 1998-03-31 | -anonymous- | NF | no factor TF: 1-61 |
|
