| 2347549 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 126 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | David Linton | F8DFD809E694ECF7 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | | Joakim Rosqvist | F8DFD809E694ECF7 | 0 | Linux 32-bit,Prime95,v13,(aka WP2) | | Factored | 1999-06-06 | John B. Meaders,Jr. | F8DFD809E694ECF7 | 1941398 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-12 | Oliver Kruse | BCB8DF5E7BE8E7A5 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-11-24 | storm5510 | BCB8DF5E7BE8E7A5 | 1 | 1842865 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-03-18 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2347549/816299591336409713383 : BCB8DF5E7BE8E7A5 | | 2017-10-12 | Oliver Kruse | C-PRP | M2347549/816299591336409713383 : BCB8DF5E7BE8E7A5 | | 2010-03-04 | Bud | F-PM1 | Factor: 816299591336409713383 | | 2009-01-15 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-21 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-06-06 | -anonymous- | C-LL | F8DFD809E694ECF7 |
|
