| 2273833 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 120 / 640 |
Estimated T-Level: 25.9 ⓘ TF below 2^81 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) | 2017-10-11 | Oliver Kruse | 0D80A4AFEEA759CA | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-21 | storm5510 | 0D80A4AFEEA759CA | 1 | 1085764 | 1 | 3 | | Verified | Certified Good | 2022-12-09 | rucio | 65EC70B417C278EB | 2 | 724555 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-12-09 | Jonathan Webb | CERT | Proof certified good | | 2022-12-09 | rucio | C-PRP | M2273833/7640078881/1891250734747617353239 : 65EC70B417C278EB Proof Certified Good
Proof Power: 7
| | 2022-12-04 | _p95holder_ | F-ECM | Factor: 1891250734747617353239 | | 2017-11-21 | storm5510 | C-PRP | M2273833/7640078881 : 0D80A4AFEEA759CA | | 2017-10-11 | Oliver Kruse | C-PRP | M2273833/7640078881 : 0D80A4AFEEA759CA | | 2016-04-30 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 |
|
