| 5023903 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| P-1 factors | | Date | Factors | B1 | B2 |
|---|
| 2025-02-02 | No new factors discovered | 5600000 | 7759443510 |
|
| 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) | 2017-11-21 | storm5510 | E2910FEDF5264DC7 | 2 | 901801 | 5 | 3 | | Factored | PRP without proof (not generated) | 2018-01-14 | kkmrkkblmbrbk | E2910FEDF5264DC7 | 2 | 2737636 | 5 | 3 | | Factored | Certified Good | 2023-05-17 | Perig | E2910FEDF5264DC7 | 3 | 1574854 | 5 | 3 | | Verified | Certified Good | 2025-01-04 | James Heinrich | E2910FEDF5264DC7 | 4 | 3675840 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-02 | Sid & Andy | F-PM1 | Factor: 355057201916291548366151 / B1=5600000, B2=7759443510 | | 2025-01-05 | Xyzzy | CERT | Proof certified good | | 2025-01-05 | Sid & Andy | F | Factor: 338388820299682193999 / TF: 68-70 | | 2025-01-04 | James Heinrich | C-PRP | M5023903/1255975751/9977471359/338388820299682193999/355057201916291548366151 : E2910FEDF5264DC7 Proof Certified Good
Proof Power: 7
| | 2025-01-04 | James Heinrich | F-PM1 | Factor: 355057201916291548366151 / B1=812000, B2=3290279850 | | 2023-05-17 | LOBES | CERT | Proof certified good | | 2023-05-17 | Perig | C-PRP | M5023903/1255975751/9977471359/338388820299682193999 : E2910FEDF5264DC7 Proof Certified Good
Proof Power: 7
| | 2023-05-12 | This -Anonymous- | F-ECM | Factor: 338388820299682193999 | | 2023-05-11 | This -Anonymous- | NF-PM1 | B1=50000, B2=1000000 | | 2018-01-14 | kkmrkkblmbrbk | C-PRP | M5023903/1255975751/9977471359 : E2910FEDF5264DC7 | | 2017-11-21 | storm5510 | C-PRP | M5023903/1255975751/9977471359 : E2910FEDF5264DC7 | | 2008-09-08 | Will Edgington | F | Factor: 9977471359 |
|
