| 5047921 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| P-1 factors | |
| 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 |
|---|
| Factored | PRP without proof (not generated) | 2017-11-22 | storm5510 | 8FC21727A6773A74 | 1 | 212092 | 5 | 3 | | Factored | PRP without proof (not generated) | 2018-01-20 | kkmrkkblmbrbk | 8FC21727A6773A74 | 1 | 276099 | 5 | 3 | | Verified | PRP without proof (not generated) | 2025-01-22 | kagakubu | 8FC21727A6773A74 | 2 | 1939681 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-22 | kagakubu | C-PRP | M5047921/111054263/177145970377965988126816031 : 8FC21727A6773A74 | | 2025-01-17 | Sid & Andy | F-PM1 | Factor: 177145970377965988126816031 / B1=6000000, B2=6348337380 | | 2025-01-10 | Sid & Andy | NF | no factor TF: 68-70 | | 2023-05-11 | This -Anonymous- | NF-PM1 | B1=50000, B2=1000000 | | 2018-01-20 | kkmrkkblmbrbk | C-PRP | M5047921/111054263 : 8FC21727A6773A74 | | 2017-11-22 | storm5510 | C-PRP | M5047921/111054263 : 8FC21727A6773A74 |
|
