| 2404093 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 125 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 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) | 2017-10-12 | Oliver Kruse | A7BD8ACFA81C8427 | 1 | 488888 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-26 | kkmrkkblmbrbk | A7BD8ACFA81C8427 | 1 | 941077 | 5 | 3 | | Verified | Certified Good | 2025-03-16 | Anton Tsvetkov | A7BD8ACFA81C8427 | 2 | 65123 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-03-16 | David Newman | CERT | Proof certified good | | 2025-03-16 | Anton Tsvetkov | C-PRP | M2404093/1380904936844711/1308161164818292645919 : A7BD8ACFA81C8427 Proof Certified Good
Proof Power: 7
| | 2025-03-16 | Anton Tsvetkov | F-ECM | Factor: 1308161164818292645919 / ECM curve 13, B1=71796, B2=26492724, Edwards Sigma=2059805515254924 | | 2018-09-28 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-26 | kkmrkkblmbrbk | C-PRP | M2404093/1380904936844711 : A7BD8ACFA81C8427 | | 2017-10-12 | Oliver Kruse | C-PRP | M2404093/1380904936844711 : A7BD8ACFA81C8427 |
|
