| 2563633 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 110 / 280 |
Estimated T-Level: 22.0 ⓘ TF below 2^68 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-02-08 | Adams Douglas | ACB805814CD95693 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1998-03-17 | Mark Gorbics | ACB805814CD95693 | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-04-13 | James Griffin | ACB805814CD95693 | 2447043 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-15 | Oliver Kruse | E8F79612DBF1F47C | 1 | 1135204 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-01 | storm5510 | E8F79612DBF1F47C | 1 | 2340013 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2017-12-01 | storm5510 | C-PRP | M2563633/10697340368800398304513230316273 : E8F79612DBF1F47C | | 2017-10-15 | Oliver Kruse | C-PRP | M2563633/10697340368800398304513230316273 : E8F79612DBF1F47C | | 2016-05-11 | mikr | F-PM1 | Factor: 10697340368800398304513230316273 / B1=3200000, B2=112000000 | | 2016-02-23 | Mark Rose | NF | no factor TF: 59-60 | | 2015-11-08 | ramgeis | NF | no factor TF: 65-66 | | 2015-02-23 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-23 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-23 | dbaugh | NF | no factor TF: 62-63 | | 2012-06-17 | Sebastian Hornbostel | NF | no factor TF: 61-62 | | 2011-04-14 | James Heinrich | NF-PM1 | B1=175000, B2=4112500, E=6 | | 2011-01-10 | Joss | NF-PM1 | B1=50000 | | 2011-01-03 | Joss | NF-PM1 | B1=30000 | | 2010-12-21 | Joss | NF-PM1 | B1=20000 | | 2009-01-31 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-11-08 | Team Prime Rib | NF-PM1 | B1=15000, B2=198750 | | 2003-10-23 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-13 | JG12 | C-LL | ACB805814CD95693 | | 1999-03-15 | JG12 | NF | no factor TF: 1-59 | | 1998-03-17 | -anonymous- | C-LL | ACB805814CD95693 | | 1998-02-08 | -anonymous- | NF | no factor TF: 1-58 | | 1998-02-08 | -anonymous- | C-LL | ACB805814CD95693 |
|
