| 2623867 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 89 / 280 |
Estimated T-Level: 21.6 ⓘ TF below 2^67 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Christopher Lund | 2FDFF05BD199BFFA | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | | Simon Burge | 2FDFF05BD199BFFA | 0 | Crandall,(aka X) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-17 | Oliver Kruse | 751CBC1232E55637 | 1 | 31746 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-02 | storm5510 | 751CBC1232E55637 | 1 | 2058557 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2022-03-11 | LordJulius | NF | no factor TF: 1-60 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2623867/24066376850088617617 : 751CBC1232E55637 | | 2017-10-17 | Oliver Kruse | C-PRP | M2623867/24066376850088617617 : 751CBC1232E55637 | | 2015-02-23 | VictordeHollander | F | Factor: 24066376850088617617 / TF: 64-65 | | 2015-02-23 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-17 | Joss | NF-PM1 | B1=124462 | | 2013-01-14 | dbaugh | NF | no factor TF: 62-63 | | 2012-06-16 | markr | NF | no factor TF: 61-62 | | 2010-12-10 | markr | NF-PM1 | B1=100000, B2=2100000, E=6 | | 2010-11-19 | 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=217500 | | 2003-10-31 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-08-07 | -anonymous- | NF | no factor TF: 1-59 |
|
