| 2447353 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 239 / 280 |
Estimated T-Level: 24.3 ⓘ TF below 2^76 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | dean mccully | 788A9F210AAF0246 | 0 | Windows 16-bit,Prime95,v11,(aka WB) | | Factored | 1999-04-02 | Ethan O'Connor | 788A9F210AAF0246 | 1272482 | Windows,Prime95,v17,NT service,(aka WT5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-13 | Oliver Kruse | 31D4D8F0D5997C01 | 1 | 452311 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-28 | storm5510 | 31D4D8F0D5997C01 | 1 | 1600826 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-09-28 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-28 | storm5510 | C-PRP | M2447353/1654299394709735857 : 31D4D8F0D5997C01 | | 2017-10-13 | Oliver Kruse | C-PRP | M2447353/1654299394709735857 : 31D4D8F0D5997C01 | | 2009-01-16 | Sturle Sunde | F | Factor: 1654299394709735857 | | 2003-10-31 | Team Prime Rib | NF-PM1 | B1=15000, B2=232500 | | 2003-10-14 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-02 | Ethan O'Connor | C-LL | 788A9F210AAF0246 | | 1999-03-15 | Ethan O'Connor | NF | no factor TF: 1-59 |
|
