| 2941571 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 112 / 280 |
Estimated T-Level: 22.0 ⓘ TF below 2^68 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) | 2017-10-25 | Oliver Kruse | 3B4E33F616F255D4 | 1 | 731431 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-12-09 | kkmrkkblmbrbk | 3B4E33F616F255D4 | 1 | 2777680 | 5 | 3 | | Verified | Certified Good | 2025-01-23 | Anton Tsvetkov | 3B4E33F616F255D4 | 2 | 336219 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-23 | Carlos Pinho | CERT | Proof certified good | | 2025-01-23 | Anton Tsvetkov | C-PRP | M2941571/23532569/3308474135361812090321 : 3B4E33F616F255D4 Proof Certified Good
Proof Power: 7
| | 2025-01-23 | Anton Tsvetkov | F-ECM | Factor: 3308474135361812090321 / ECM curve 23, B1=50000, B2=14967225, Edwards Sigma=4327255906207121 | | 2023-02-10 | USAFSS | NF-PM1 | B1=360000, B2=282695490 | | 2017-12-09 | kkmrkkblmbrbk | C-PRP | M2941571/23532569 : 3B4E33F616F255D4 | | 2017-10-25 | Oliver Kruse | C-PRP | M2941571/23532569 : 3B4E33F616F255D4 |
|
