| 2279591 | Composite, with 3 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 123 / 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) | 2017-10-11 | Oliver Kruse | 7140DDE5F528357C | 2 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-22 | storm5510 | 7140DDE5F528357C | 2 | 105003 | 1 | 3 | | Verified | Certified Good | 2025-09-25 | Oliver Kruse | 6F736106B24962E2 | 3 | 0 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-25 | Tigrus | CERT | Proof certified good | | 2025-09-25 | Oliver Kruse | C-PRP | M2279591/6168573247/4688596292619938846321/45898815503261094671492009 : 6F736106B24962E2 Proof Certified Good
Proof Power: 7
| | 2025-09-19 | TJAOI | F-ECM | Factor: 45898815503261094671492009 / ECM curve 30, B1=250000, B2=264647565, Edwards Sigma=8206037221713867 | | 2017-11-22 | storm5510 | C-PRP | M2279591/6168573247/4688596292619938846321 : 7140DDE5F528357C | | 2017-10-11 | Oliver Kruse | C-PRP | M2279591/6168573247/4688596292619938846321 : 7140DDE5F528357C | | 2016-04-09 | alpertron | F-PM1 | Factor: 4688596292619938846321 / B1=500000, B2=15000000 |
|
