| 3863903 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 264 |
| Factored | | Factor | Digits | Bits | Date |
|---|
| 7727807 | 7 | 22.9 | old |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 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) | 2017-09-20 | kkmrkkblmbrbk | 62EADF4F0C51932B | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-12-24 | storm5510 | 62EADF4F0C51932B | 1 | 273629 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-09-09 | Joss | NF-PM1 | B1=1000000, B2=212677920 | | 2022-04-02 | Joss | NF-PM1 | B1=1000000, B2=147585900 | | 2022-02-10 | Joss | NF | no factor TF: 67-68 | | 2020-11-02 | Joss | NF-PM1 | B1=400000, B2=7727806 | | 2017-12-24 | storm5510 | C-PRP | M3863903/7727807 : 62EADF4F0C51932B | | 2017-09-20 | kkmrkkblmbrbk | C-PRP | M3863903/7727807 : 62EADF4F0C51932B |
|
