| 6571553 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 267 |
| Factored | |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-12-28 | Oliver Kruse | 14DA21ADC6E4F5C5 | 2 | 2550818 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-10-26 | storm5510 | 14DA21ADC6E4F5C5 | 2 | 4501099 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-23 | Stef42 | NF-PM1 | B1=2281000, B2=5491639230 | | 2023-12-07 | Stef42 | NF-PM1 | B1=109000, B2=124105800 | | 2018-10-26 | storm5510 | C-PRP | M6571553/185002360057/778722143512457 : 14DA21ADC6E4F5C5 | | 2017-12-28 | Oliver Kruse | C-PRP | M6571553/185002360057/778722143512457 : 14DA21ADC6E4F5C5 | | 2008-09-30 | markr | F | Factor: 778722143512457 |
|
