| 2439907 | Composite, with 3 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 119 / 280 |
Estimated T-Level: 22.1 ⓘ TF below 2^68 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) | 2017-10-13 | Oliver Kruse | 470D39961074BDB9 | 2 | 2180977 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-11-27 | storm5510 | 470D39961074BDB9 | 2 | 1227947 | 5 | 3 | | Verified | Certified Good | 2025-11-10 | MarkS | 470D39961074BDB9 | 3 | 1921541 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-11-10 | ViKi | CERT | Proof certified good | | 2025-11-10 | MarkS | C-PRP | M2439907/351346609/3037366943084001991/2029793466556498514152433 : 470D39961074BDB9 Proof Certified Good
Proof Power: 7
| | 2025-11-10 | MarkS | F-ECM | Factor: 2029793466556498514152433 / ECM curve 8, B1=93953, B2=86479575, Edwards Sigma=6610845839165412 | | 2018-09-28 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-27 | storm5510 | C-PRP | M2439907/351346609/3037366943084001991 : 470D39961074BDB9 | | 2017-10-13 | Oliver Kruse | C-PRP | M2439907/351346609/3037366943084001991 : 470D39961074BDB9 | | 2016-04-25 | TJAOI | F | Factor: 3037366943084001991 |
|
