| 2264357 | 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 | 156 / 640 |
Estimated T-Level: 26.2 ⓘ TF below 2^82 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 | BC9979643E67A8B8 | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-21 | storm5510 | BC9979643E67A8B8 | 1 | 1596839 | 1 | 3 | | Verified | Certified Good | 2022-09-28 | LordJulius | D741609F46A168F0 | 2 | 94899 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-09-28 | Nesowa | CERT | Proof certified good | | 2022-09-28 | LordJulius | C-PRP | Proof Certified Good
Proof Power: 7
| | 2022-09-24 | debrouxl | F-ECM | Factor: 25873333691249452283441 / ECM curve 1, B1=50000, B2=7150000, Montgomery Sigma=6344473119864395 | | 2017-11-21 | storm5510 | C-PRP | M2264357/13586143 : BC9979643E67A8B8 | | 2017-10-11 | Oliver Kruse | C-PRP | M2264357/13586143 : BC9979643E67A8B8 | | 2016-04-20 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 |
|
