| 2352191 | 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 | 139 / 640 |
Estimated T-Level: 26.1 ⓘ 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) | 2017-10-12 | Oliver Kruse | 0D72CC38C538AE00 | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-24 | storm5510 | 0D72CC38C538AE00 | 1 | 1520995 | 1 | 3 | | Verified | Certified Good | 2026-01-21 | Oliver Kruse | 02AEF93B49C72BA4 | 2 | 91257 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-01-21 | brendanb4321 | CERT | Proof certified good | | 2026-01-21 | Oliver Kruse | C-PRP | M2352191/4704383/310652834824493837547127 : 02AEF93B49C72BA4 Proof Certified Good
Proof Power: 7
| | 2026-01-16 | TJAOI | F-ECM | Factor: 310652834824493837547127 / ECM curve 17, B1=250000, B2=643227585, Edwards Sigma=3675601375351544 | | 2018-04-27 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2352191/4704383 : 0D72CC38C538AE00 | | 2017-10-12 | Oliver Kruse | C-PRP | M2352191/4704383 : 0D72CC38C538AE00 |
|
