| 2341217 | 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 | 129 / 640 |
Estimated T-Level: 26.0 ⓘ 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) | 2017-10-12 | Oliver Kruse | 6FC79BC6624027BB | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-24 | storm5510 | 6FC79BC6624027BB | 1 | 2155003 | 1 | 3 | | Verified | Not Uploaded | 2025-10-22 | debrouxl | 7FA721A4B2DC8830 | 2 | 199226 | 5 | 3 | | Verified | Certified Good | 2025-12-25 | Jason Lynch | 7FA721A4B2DC8830 | 2 | 1510021 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-12-31 | duncanwa | CERT | Proof certified good | | 2025-12-25 | Jason Lynch | C-PRP | M2341217/14047303/1000553499626769380359201 : 7FA721A4B2DC8830 Proof Certified Good
Proof Power: 7
| | 2025-10-22 | debrouxl | C-PRP | M2341217/14047303/1000553499626769380359201 : 7FA721A4B2DC8830 Proof Not Uploaded
Proof Power: 7
| | 2025-10-22 | debrouxl | F-ECM | Factor: 1000553499626769380359201 / ECM curve 17, B1=94001, B2=211882125, Edwards Sigma=4942327378279923 | | 2018-03-18 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2341217/14047303 : 6FC79BC6624027BB | | 2017-10-12 | Oliver Kruse | C-PRP | M2341217/14047303 : 6FC79BC6624027BB |
|
