| 2631437 | Composite, with 3 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 95 / 280 |
Estimated T-Level: 21.7 ⓘ TF below 2^67 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) | 2017-10-17 | Oliver Kruse | 6D74E90FA733AA99 | 2 | 295265 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-12-02 | storm5510 | 6D74E90FA733AA99 | 2 | 1168618 | 5 | 3 | | Verified | Certified Good | 2024-04-29 | MarkS | 6D74E90FA733AA99 | 3 | 1459174 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-04-30 | Gyuri | CERT | Proof certified good | | 2024-04-29 | MarkS | C-PRP | M2631437/4319724876209/661304916762289/84448432379717454537682273 : 6D74E90FA733AA99 Proof Certified Good
Proof Power: 7
| | 2024-04-29 | MarkS | F-ECM | Factor: 84448432379717454537682273 / ECM curve 8, B1=50000, B2=60054225, Edwards Sigma=1435993314854522 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2631437/4319724876209/661304916762289 : 6D74E90FA733AA99 | | 2017-10-17 | Oliver Kruse | C-PRP | M2631437/4319724876209/661304916762289 : 6D74E90FA733AA99 | | 2008-09-30 | markr | F | Factor: 661304916762289 |
|
