| 5021917 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-11-21 | storm5510 | FD88C86C6BB28819 | 4 | 749376 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-01-13 | kkmrkkblmbrbk | FD88C86C6BB28819 | 4 | 2729436 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-28 | Sid & Andy | NF-PM1 | B1=5600000, B2=7759443510 | | 2025-01-05 | Sid & Andy | F | Factors: 30131503,12180509025991 / TF: 68-70 | | 2024-05-07 | cramsey87 | NF-PM1 | B1=500000, B2=324995580 | | 2023-05-11 | This -Anonymous- | NF-PM1 | B1=50000, B2=1000000 | | 2018-01-13 | kkmrkkblmbrbk | C-PRP | M5021917/30131503/120526009/12180509025991/118789017304207 : FD88C86C6BB28819 | | 2017-11-21 | storm5510 | C-PRP | M5021917/30131503/120526009/12180509025991/118789017304207 : FD88C86C6BB28819 | | 2014-02-19 | TJAOI | F | Factor: 118789017304207 | | 2008-09-30 | markr | F | Factor: 12180509025991 | | 2008-09-08 | Will Edgington | F | Factor: 120526009 |
|
