| 2266801 | Composite, with 3 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 190 / 640 |
Estimated T-Level: 26.5 ⓘ TF below 2^83 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) | 2017-10-10 | Oliver Kruse | 27B78971343A68FA | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-10-18 | Oliver Kruse | DE4181E802549875 | 3 | 833537 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-21 | storm5510 | DE4181E802549875 | 3 | 518139 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2017-11-21 | storm5510 | C-PRP | M2266801/6909209449/11317455521124793/430514088986854681 : DE4181E802549875 | | 2017-10-18 | Oliver Kruse | C-PRP | M2266801/6909209449/11317455521124793/430514088986854681 : DE4181E802549875 | | 2017-10-10 | Oliver Kruse | C-PRP | M2266801/known_factors : 27B78971343A68FA | | 2016-04-23 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2015-09-16 | TJAOI | F | Factor: 430514088986854681 | | 2014-09-18 | TJAOI | F | Factor: 11317455521124793 |
|
