| 5123873 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 270 TF target 265 |
| Factored | |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-11-22 | storm5510 | 4CF15F209434AED5 | 2 | 4349809 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-01-19 | kkmrkkblmbrbk | 4CF15F209434AED5 | 2 | 3979668 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-02-11 | Sid & Andy | NF | no factor TF: 68-70 | | 2025-01-18 | Sid & Andy | NF-PM1 | B1=3800000, B2=10219948200 | | 2024-07-30 | cramsey87 | NF-PM1 | B1=300000, B2=104169030 | | 2023-05-11 | This -Anonymous- | NF-PM1 | B1=50000, B2=1000000 | | 2018-01-19 | kkmrkkblmbrbk | C-PRP | M5123873/43204497137/92563288380047 : 4CF15F209434AED5 | | 2017-11-22 | storm5510 | C-PRP | M5123873/43204497137/92563288380047 : 4CF15F209434AED5 | | 2014-02-12 | TJAOI | F | Factor: 92563288380047 |
|
