| 2617613 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 94 / 280 |
Estimated T-Level: 21.7 ⓘ TF below 2^67 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) | 2017-10-17 | Oliver Kruse | 39B0367AABEB67EB | 3 | 264639 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-12-02 | storm5510 | 39B0367AABEB67EB | 3 | 1309518 | 5 | 3 | | Verified | Certified Good | 2024-10-10 | Naegi Makoto | 39B0367AABEB67EB | 4 | 1985894 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-10-10 | CrzyRed | CERT | Proof certified good | | 2024-10-10 | Naegi Makoto | C-PRP | M2617613/36646583/1319276953/78528391/10450310209717576991921 : 39B0367AABEB67EB Proof Certified Good
Proof Power: 7
| | 2024-10-08 | debrouxl | F-ECM | Factor: 10450310209717576991921 / ECM curve 15, B1=50000, B2=6250000, Montgomery Sigma=2395905705428905 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2617613/36646583/1319276953/78528391 : 39B0367AABEB67EB | | 2017-10-17 | Oliver Kruse | C-PRP | M2617613/36646583/1319276953/78528391 : 39B0367AABEB67EB | | 2008-07-14 | George Woltman | F-ECM | Factor: 78528391 | | 2008-07-14 | George Woltman | F-ECM | Factor: 1319276953 |
|
