| 2531423 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | | Factor | Digits | Bits | Date |
|---|
| 5062847 | 7 | 22.3 | old |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 118 / 280 |
Estimated T-Level: 22.1 ⓘ 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 |
|---|
| Verified | PRP without proof (not generated) | 2017-10-14 | Oliver Kruse | A9D2E049185642EC | 1 | 892635 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-01 | storm5510 | A9D2E049185642EC | 1 | 2006359 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2021-09-22 | Dylan Delgado | NF-PM1 | B1=3000000, B2=273000000 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2019-03-10 | Joss | NF-PM1 | B1=100000 | | 2017-12-01 | storm5510 | C-PRP | M2531423/5062847 : A9D2E049185642EC | | 2017-10-14 | Oliver Kruse | C-PRP | M2531423/5062847 : A9D2E049185642EC |
|
