| 2363021 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 117 / 640 |
Estimated T-Level: 25.9 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | John Lloyd | 303853FE8F5584D9 | 0 | Windows,Prime95,v14,(aka WQ1) |
|
| 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 | CA020FAD197898F1 | 1 | 1300401 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-24 | storm5510 | CA020FAD197898F1 | 1 | 1101840 | 5 | 3 | | Verified | Certified Good | 2026-01-21 | Oliver Kruse | CA020FAD197898F1 | 2 | 587202 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-01-21 | CPU - 2 - BTU | CERT | Proof certified good | | 2026-01-21 | Oliver Kruse | C-PRP | M2363021/324504007831914073/1091910129814385885676152978753 : CA020FAD197898F1 Proof Certified Good
Proof Power: 7
| | 2026-01-16 | TJAOI | F-ECM | Factor: 1091910129814385885676152978753 / ECM curve 23, B1=250000, B2=264647565, Edwards Sigma=5167903585644247 | | 2018-04-27 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2363021/324504007831914073 : CA020FAD197898F1 | | 2017-10-12 | Oliver Kruse | C-PRP | M2363021/324504007831914073 : CA020FAD197898F1 Proof Certified Good
Proof Power: 7
| | 1999-03-15 | -anonymous- | F | Factor: 324504007831914073 |
|
