| 8392123 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 268 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 16 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2000-02-01 | Ray Strubinger | 238D77C14C885426 | 6451925 | Linux 32-bit,Prime95,v19,(aka WV2) | | Factored | 2003-01-25 | Marc Getty / Phil Fizur | 238D77C14C885426 | 4923925 | Windows,Prime95,v21,NT service,(aka WX5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-10-21 | storm5510 | E92E725D1541FA44 | 1 | 3638065 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-05-16 | Team_Inspector | E92E725D1541FA44 | 1 | 1062428 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-03 | Stef42 | NF-PM1 | B1=1132000, B2=1738013550 | | 2021-05-12 | firejuggler | NF-PP1 | Start=6/5, B1=500000, B2=26000000 | | 2021-05-06 | firejuggler | NF-PP1 | Start=2/7, B1=500000, B2=26500000 | | 2020-05-16 | Team_Inspector | C-PRP | M8392123/31044968233371408789441151 : E92E725D1541FA44 | | 2018-10-21 | storm5510 | C-PRP | M8392123/31044968233371408789441151 : E92E725D1541FA44 | | 2012-08-25 | firejuggler | F-PM1 | Factor: 31044968233371408789441151 | | 2003-01-25 | -anonymous- | C-LL | 238D77C14C885426 | | 2002-12-25 | -anonymous- | NF-PM1 | B1=40000, B2=500000 | | 2002-06-15 | riccardo uberti | NF | no factor TF: 1-63 | | 2000-02-01 | Orion | C-LL | 238D77C14C885426 | | 2000-01-12 | Orion | NF | no factor TF: 1-64 | | 1998-12-13 | riccardo uberti | NF | no factor TF: 1-63 | | 1998-11-21 | -anonymous- | NF | no factor TF: 1-62 | | 1998-09-20 | -anonymous- | NF | no factor TF: 1-61 |
|
