| 2499521 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 231 / 280 |
Estimated T-Level: 24.1 ⓘ TF below 2^75 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) | 2017-10-14 | Oliver Kruse | 3707D055351744F4 | 1 | 638871 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-30 | storm5510 | 3707D055351744F4 | 1 | 1069880 | 5 | 3 | | Verified | Certified Good | 2024-01-01 | Ahmed Azhad | 3707D055351744F4 | 2 | 1434198 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-01-02 | moeses | CERT | Proof certified good | | 2024-01-01 | Ahmed Azhad | C-PRP | M2499521/14897145161/626373835583799228367823 : 3707D055351744F4 Proof Certified Good
Proof Power: 7
| | 2024-01-01 | Ahmed Azhad | F-ECM | Factor: 626373835583799228367823 / ECM curve 44, B1=50000, B2=31130190, Edwards Sigma=8567777700310323 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-30 | storm5510 | C-PRP | M2499521/14897145161 : 3707D055351744F4 | | 2017-10-14 | Oliver Kruse | C-PRP | M2499521/14897145161 : 3707D055351744F4 |
|
